// Copyright 2025 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Code generated by protoc-gen-go_gapic. DO NOT EDIT.

package meet

import (
	"context"
	"fmt"
	"log/slog"
	"math"
	"net/http"
	"net/url"
	"time"

	meetpb "cloud.google.com/go/apps/meet/apiv2/meetpb"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	gtransport "google.golang.org/api/transport/grpc"
	httptransport "google.golang.org/api/transport/http"
	"google.golang.org/grpc"
	"google.golang.org/grpc/codes"
	"google.golang.org/protobuf/encoding/protojson"
	"google.golang.org/protobuf/proto"
)

var newConferenceRecordsClientHook clientHook

// ConferenceRecordsCallOptions contains the retry settings for each method of ConferenceRecordsClient.
type ConferenceRecordsCallOptions struct {
	GetConferenceRecord     []gax.CallOption
	ListConferenceRecords   []gax.CallOption
	GetParticipant          []gax.CallOption
	ListParticipants        []gax.CallOption
	GetParticipantSession   []gax.CallOption
	ListParticipantSessions []gax.CallOption
	GetRecording            []gax.CallOption
	ListRecordings          []gax.CallOption
	GetTranscript           []gax.CallOption
	ListTranscripts         []gax.CallOption
	GetTranscriptEntry      []gax.CallOption
	ListTranscriptEntries   []gax.CallOption
}

func defaultConferenceRecordsGRPCClientOptions() []option.ClientOption {
	return []option.ClientOption{
		internaloption.WithDefaultEndpoint("meet.googleapis.com:443"),
		internaloption.WithDefaultEndpointTemplate("meet.UNIVERSE_DOMAIN:443"),
		internaloption.WithDefaultMTLSEndpoint("meet.mtls.googleapis.com:443"),
		internaloption.WithDefaultUniverseDomain("googleapis.com"),
		internaloption.WithDefaultAudience("https://meet.googleapis.com/"),
		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
		internaloption.EnableJwtWithScope(),
		internaloption.EnableNewAuthLibrary(),
		option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
			grpc.MaxCallRecvMsgSize(math.MaxInt32))),
	}
}

func defaultConferenceRecordsCallOptions() *ConferenceRecordsCallOptions {
	return &ConferenceRecordsCallOptions{
		GetConferenceRecord: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListConferenceRecords: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetParticipant: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListParticipants: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetParticipantSession: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListParticipantSessions: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetRecording: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListRecordings: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetTranscript: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListTranscripts: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetTranscriptEntry: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListTranscriptEntries: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
	}
}

func defaultConferenceRecordsRESTCallOptions() *ConferenceRecordsCallOptions {
	return &ConferenceRecordsCallOptions{
		GetConferenceRecord: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		ListConferenceRecords: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		GetParticipant: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		ListParticipants: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		GetParticipantSession: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		ListParticipantSessions: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		GetRecording: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		ListRecordings: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		GetTranscript: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		ListTranscripts: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		GetTranscriptEntry: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		ListTranscriptEntries: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
	}
}

// internalConferenceRecordsClient is an interface that defines the methods available from Google Meet API.
type internalConferenceRecordsClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	GetConferenceRecord(context.Context, *meetpb.GetConferenceRecordRequest, ...gax.CallOption) (*meetpb.ConferenceRecord, error)
	ListConferenceRecords(context.Context, *meetpb.ListConferenceRecordsRequest, ...gax.CallOption) *ConferenceRecordIterator
	GetParticipant(context.Context, *meetpb.GetParticipantRequest, ...gax.CallOption) (*meetpb.Participant, error)
	ListParticipants(context.Context, *meetpb.ListParticipantsRequest, ...gax.CallOption) *ParticipantIterator
	GetParticipantSession(context.Context, *meetpb.GetParticipantSessionRequest, ...gax.CallOption) (*meetpb.ParticipantSession, error)
	ListParticipantSessions(context.Context, *meetpb.ListParticipantSessionsRequest, ...gax.CallOption) *ParticipantSessionIterator
	GetRecording(context.Context, *meetpb.GetRecordingRequest, ...gax.CallOption) (*meetpb.Recording, error)
	ListRecordings(context.Context, *meetpb.ListRecordingsRequest, ...gax.CallOption) *RecordingIterator
	GetTranscript(context.Context, *meetpb.GetTranscriptRequest, ...gax.CallOption) (*meetpb.Transcript, error)
	ListTranscripts(context.Context, *meetpb.ListTranscriptsRequest, ...gax.CallOption) *TranscriptIterator
	GetTranscriptEntry(context.Context, *meetpb.GetTranscriptEntryRequest, ...gax.CallOption) (*meetpb.TranscriptEntry, error)
	ListTranscriptEntries(context.Context, *meetpb.ListTranscriptEntriesRequest, ...gax.CallOption) *TranscriptEntryIterator
}

// ConferenceRecordsClient is a client for interacting with Google Meet API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// REST API for services dealing with conference records.
type ConferenceRecordsClient struct {
	// The internal transport-dependent client.
	internalClient internalConferenceRecordsClient

	// The call options for this service.
	CallOptions *ConferenceRecordsCallOptions
}

// Wrapper methods routed to the internal client.

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *ConferenceRecordsClient) Close() error {
	return c.internalClient.Close()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *ConferenceRecordsClient) setGoogleClientInfo(keyval ...string) {
	c.internalClient.setGoogleClientInfo(keyval...)
}

// Connection returns a connection to the API service.
//
// Deprecated: Connections are now pooled so this method does not always
// return the same resource.
func (c *ConferenceRecordsClient) Connection() *grpc.ClientConn {
	return c.internalClient.Connection()
}

// GetConferenceRecord gets a conference record by conference ID.
func (c *ConferenceRecordsClient) GetConferenceRecord(ctx context.Context, req *meetpb.GetConferenceRecordRequest, opts ...gax.CallOption) (*meetpb.ConferenceRecord, error) {
	return c.internalClient.GetConferenceRecord(ctx, req, opts...)
}

// ListConferenceRecords lists the conference records. By default, ordered by start time and in
// descending order.
func (c *ConferenceRecordsClient) ListConferenceRecords(ctx context.Context, req *meetpb.ListConferenceRecordsRequest, opts ...gax.CallOption) *ConferenceRecordIterator {
	return c.internalClient.ListConferenceRecords(ctx, req, opts...)
}

// GetParticipant gets a participant by participant ID.
func (c *ConferenceRecordsClient) GetParticipant(ctx context.Context, req *meetpb.GetParticipantRequest, opts ...gax.CallOption) (*meetpb.Participant, error) {
	return c.internalClient.GetParticipant(ctx, req, opts...)
}

// ListParticipants lists the participants in a conference record. By default, ordered by join
// time and in descending order. This API supports fields as standard
// parameters like every other API. However, when the fields request
// parameter is omitted, this API defaults to 'participants/*, next_page_token'.
func (c *ConferenceRecordsClient) ListParticipants(ctx context.Context, req *meetpb.ListParticipantsRequest, opts ...gax.CallOption) *ParticipantIterator {
	return c.internalClient.ListParticipants(ctx, req, opts...)
}

// GetParticipantSession gets a participant session by participant session ID.
func (c *ConferenceRecordsClient) GetParticipantSession(ctx context.Context, req *meetpb.GetParticipantSessionRequest, opts ...gax.CallOption) (*meetpb.ParticipantSession, error) {
	return c.internalClient.GetParticipantSession(ctx, req, opts...)
}

// ListParticipantSessions lists the participant sessions of a participant in a conference record. By
// default, ordered by join time and in descending order. This API supports
// fields as standard parameters like every other API. However, when the
// fields request parameter is omitted this API defaults to
// 'participantsessions/*, next_page_token'.
func (c *ConferenceRecordsClient) ListParticipantSessions(ctx context.Context, req *meetpb.ListParticipantSessionsRequest, opts ...gax.CallOption) *ParticipantSessionIterator {
	return c.internalClient.ListParticipantSessions(ctx, req, opts...)
}

// GetRecording gets a recording by recording ID.
func (c *ConferenceRecordsClient) GetRecording(ctx context.Context, req *meetpb.GetRecordingRequest, opts ...gax.CallOption) (*meetpb.Recording, error) {
	return c.internalClient.GetRecording(ctx, req, opts...)
}

// ListRecordings lists the recording resources from the conference record. By default,
// ordered by start time and in ascending order.
func (c *ConferenceRecordsClient) ListRecordings(ctx context.Context, req *meetpb.ListRecordingsRequest, opts ...gax.CallOption) *RecordingIterator {
	return c.internalClient.ListRecordings(ctx, req, opts...)
}

// GetTranscript gets a transcript by transcript ID.
func (c *ConferenceRecordsClient) GetTranscript(ctx context.Context, req *meetpb.GetTranscriptRequest, opts ...gax.CallOption) (*meetpb.Transcript, error) {
	return c.internalClient.GetTranscript(ctx, req, opts...)
}

// ListTranscripts lists the set of transcripts from the conference record. By default,
// ordered by start time and in ascending order.
func (c *ConferenceRecordsClient) ListTranscripts(ctx context.Context, req *meetpb.ListTranscriptsRequest, opts ...gax.CallOption) *TranscriptIterator {
	return c.internalClient.ListTranscripts(ctx, req, opts...)
}

// GetTranscriptEntry gets a TranscriptEntry resource by entry ID.
//
// Note: The transcript entries returned by the Google Meet API might not
// match the transcription found in the Google Docs transcript file. This can
// occur when the Google Docs transcript file is modified after generation.
func (c *ConferenceRecordsClient) GetTranscriptEntry(ctx context.Context, req *meetpb.GetTranscriptEntryRequest, opts ...gax.CallOption) (*meetpb.TranscriptEntry, error) {
	return c.internalClient.GetTranscriptEntry(ctx, req, opts...)
}

// ListTranscriptEntries lists the structured transcript entries per transcript. By default, ordered
// by start time and in ascending order.
//
// Note: The transcript entries returned by the Google Meet API might not
// match the transcription found in the Google Docs transcript file. This can
// occur when the Google Docs transcript file is modified after generation.
func (c *ConferenceRecordsClient) ListTranscriptEntries(ctx context.Context, req *meetpb.ListTranscriptEntriesRequest, opts ...gax.CallOption) *TranscriptEntryIterator {
	return c.internalClient.ListTranscriptEntries(ctx, req, opts...)
}

// conferenceRecordsGRPCClient is a client for interacting with Google Meet API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type conferenceRecordsGRPCClient struct {
	// Connection pool of gRPC connections to the service.
	connPool gtransport.ConnPool

	// Points back to the CallOptions field of the containing ConferenceRecordsClient
	CallOptions **ConferenceRecordsCallOptions

	// The gRPC API client.
	conferenceRecordsClient meetpb.ConferenceRecordsServiceClient

	// The x-goog-* metadata to be sent with each request.
	xGoogHeaders []string

	logger *slog.Logger
}

// NewConferenceRecordsClient creates a new conference records service client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// REST API for services dealing with conference records.
func NewConferenceRecordsClient(ctx context.Context, opts ...option.ClientOption) (*ConferenceRecordsClient, error) {
	clientOpts := defaultConferenceRecordsGRPCClientOptions()
	if newConferenceRecordsClientHook != nil {
		hookOpts, err := newConferenceRecordsClientHook(ctx, clientHookParams{})
		if err != nil {
			return nil, err
		}
		clientOpts = append(clientOpts, hookOpts...)
	}

	connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
	if err != nil {
		return nil, err
	}
	client := ConferenceRecordsClient{CallOptions: defaultConferenceRecordsCallOptions()}

	c := &conferenceRecordsGRPCClient{
		connPool:                connPool,
		conferenceRecordsClient: meetpb.NewConferenceRecordsServiceClient(connPool),
		CallOptions:             &client.CallOptions,
		logger:                  internaloption.GetLogger(opts),
	}
	c.setGoogleClientInfo()

	client.internalClient = c

	return &client, nil
}

// Connection returns a connection to the API service.
//
// Deprecated: Connections are now pooled so this method does not always
// return the same resource.
func (c *conferenceRecordsGRPCClient) Connection() *grpc.ClientConn {
	return c.connPool.Conn()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *conferenceRecordsGRPCClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version, "pb", protoVersion)
	c.xGoogHeaders = []string{
		"x-goog-api-client", gax.XGoogHeader(kv...),
	}
}

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *conferenceRecordsGRPCClient) Close() error {
	return c.connPool.Close()
}

// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type conferenceRecordsRESTClient struct {
	// The http endpoint to connect to.
	endpoint string

	// The http client.
	httpClient *http.Client

	// The x-goog-* headers to be sent with each request.
	xGoogHeaders []string

	// Points back to the CallOptions field of the containing ConferenceRecordsClient
	CallOptions **ConferenceRecordsCallOptions

	logger *slog.Logger
}

// NewConferenceRecordsRESTClient creates a new conference records service rest client.
//
// REST API for services dealing with conference records.
func NewConferenceRecordsRESTClient(ctx context.Context, opts ...option.ClientOption) (*ConferenceRecordsClient, error) {
	clientOpts := append(defaultConferenceRecordsRESTClientOptions(), opts...)
	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
	if err != nil {
		return nil, err
	}

	callOpts := defaultConferenceRecordsRESTCallOptions()
	c := &conferenceRecordsRESTClient{
		endpoint:    endpoint,
		httpClient:  httpClient,
		CallOptions: &callOpts,
		logger:      internaloption.GetLogger(opts),
	}
	c.setGoogleClientInfo()

	return &ConferenceRecordsClient{internalClient: c, CallOptions: callOpts}, nil
}

func defaultConferenceRecordsRESTClientOptions() []option.ClientOption {
	return []option.ClientOption{
		internaloption.WithDefaultEndpoint("https://meet.googleapis.com"),
		internaloption.WithDefaultEndpointTemplate("https://meet.UNIVERSE_DOMAIN"),
		internaloption.WithDefaultMTLSEndpoint("https://meet.mtls.googleapis.com"),
		internaloption.WithDefaultUniverseDomain("googleapis.com"),
		internaloption.WithDefaultAudience("https://meet.googleapis.com/"),
		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
		internaloption.EnableNewAuthLibrary(),
	}
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *conferenceRecordsRESTClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN", "pb", protoVersion)
	c.xGoogHeaders = []string{
		"x-goog-api-client", gax.XGoogHeader(kv...),
	}
}

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *conferenceRecordsRESTClient) Close() error {
	// Replace httpClient with nil to force cleanup.
	c.httpClient = nil
	return nil
}

// Connection returns a connection to the API service.
//
// Deprecated: This method always returns nil.
func (c *conferenceRecordsRESTClient) Connection() *grpc.ClientConn {
	return nil
}
func (c *conferenceRecordsGRPCClient) GetConferenceRecord(ctx context.Context, req *meetpb.GetConferenceRecordRequest, opts ...gax.CallOption) (*meetpb.ConferenceRecord, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetConferenceRecord[0:len((*c.CallOptions).GetConferenceRecord):len((*c.CallOptions).GetConferenceRecord)], opts...)
	var resp *meetpb.ConferenceRecord
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = executeRPC(ctx, c.conferenceRecordsClient.GetConferenceRecord, req, settings.GRPC, c.logger, "GetConferenceRecord")
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *conferenceRecordsGRPCClient) ListConferenceRecords(ctx context.Context, req *meetpb.ListConferenceRecordsRequest, opts ...gax.CallOption) *ConferenceRecordIterator {
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, c.xGoogHeaders...)
	opts = append((*c.CallOptions).ListConferenceRecords[0:len((*c.CallOptions).ListConferenceRecords):len((*c.CallOptions).ListConferenceRecords)], opts...)
	it := &ConferenceRecordIterator{}
	req = proto.Clone(req).(*meetpb.ListConferenceRecordsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.ConferenceRecord, string, error) {
		resp := &meetpb.ListConferenceRecordsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = executeRPC(ctx, c.conferenceRecordsClient.ListConferenceRecords, req, settings.GRPC, c.logger, "ListConferenceRecords")
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetConferenceRecords(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *conferenceRecordsGRPCClient) GetParticipant(ctx context.Context, req *meetpb.GetParticipantRequest, opts ...gax.CallOption) (*meetpb.Participant, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetParticipant[0:len((*c.CallOptions).GetParticipant):len((*c.CallOptions).GetParticipant)], opts...)
	var resp *meetpb.Participant
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = executeRPC(ctx, c.conferenceRecordsClient.GetParticipant, req, settings.GRPC, c.logger, "GetParticipant")
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *conferenceRecordsGRPCClient) ListParticipants(ctx context.Context, req *meetpb.ListParticipantsRequest, opts ...gax.CallOption) *ParticipantIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListParticipants[0:len((*c.CallOptions).ListParticipants):len((*c.CallOptions).ListParticipants)], opts...)
	it := &ParticipantIterator{}
	req = proto.Clone(req).(*meetpb.ListParticipantsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.Participant, string, error) {
		resp := &meetpb.ListParticipantsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = executeRPC(ctx, c.conferenceRecordsClient.ListParticipants, req, settings.GRPC, c.logger, "ListParticipants")
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetParticipants(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *conferenceRecordsGRPCClient) GetParticipantSession(ctx context.Context, req *meetpb.GetParticipantSessionRequest, opts ...gax.CallOption) (*meetpb.ParticipantSession, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetParticipantSession[0:len((*c.CallOptions).GetParticipantSession):len((*c.CallOptions).GetParticipantSession)], opts...)
	var resp *meetpb.ParticipantSession
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = executeRPC(ctx, c.conferenceRecordsClient.GetParticipantSession, req, settings.GRPC, c.logger, "GetParticipantSession")
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *conferenceRecordsGRPCClient) ListParticipantSessions(ctx context.Context, req *meetpb.ListParticipantSessionsRequest, opts ...gax.CallOption) *ParticipantSessionIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListParticipantSessions[0:len((*c.CallOptions).ListParticipantSessions):len((*c.CallOptions).ListParticipantSessions)], opts...)
	it := &ParticipantSessionIterator{}
	req = proto.Clone(req).(*meetpb.ListParticipantSessionsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.ParticipantSession, string, error) {
		resp := &meetpb.ListParticipantSessionsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = executeRPC(ctx, c.conferenceRecordsClient.ListParticipantSessions, req, settings.GRPC, c.logger, "ListParticipantSessions")
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetParticipantSessions(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *conferenceRecordsGRPCClient) GetRecording(ctx context.Context, req *meetpb.GetRecordingRequest, opts ...gax.CallOption) (*meetpb.Recording, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetRecording[0:len((*c.CallOptions).GetRecording):len((*c.CallOptions).GetRecording)], opts...)
	var resp *meetpb.Recording
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = executeRPC(ctx, c.conferenceRecordsClient.GetRecording, req, settings.GRPC, c.logger, "GetRecording")
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *conferenceRecordsGRPCClient) ListRecordings(ctx context.Context, req *meetpb.ListRecordingsRequest, opts ...gax.CallOption) *RecordingIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListRecordings[0:len((*c.CallOptions).ListRecordings):len((*c.CallOptions).ListRecordings)], opts...)
	it := &RecordingIterator{}
	req = proto.Clone(req).(*meetpb.ListRecordingsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.Recording, string, error) {
		resp := &meetpb.ListRecordingsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = executeRPC(ctx, c.conferenceRecordsClient.ListRecordings, req, settings.GRPC, c.logger, "ListRecordings")
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetRecordings(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *conferenceRecordsGRPCClient) GetTranscript(ctx context.Context, req *meetpb.GetTranscriptRequest, opts ...gax.CallOption) (*meetpb.Transcript, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetTranscript[0:len((*c.CallOptions).GetTranscript):len((*c.CallOptions).GetTranscript)], opts...)
	var resp *meetpb.Transcript
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = executeRPC(ctx, c.conferenceRecordsClient.GetTranscript, req, settings.GRPC, c.logger, "GetTranscript")
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *conferenceRecordsGRPCClient) ListTranscripts(ctx context.Context, req *meetpb.ListTranscriptsRequest, opts ...gax.CallOption) *TranscriptIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListTranscripts[0:len((*c.CallOptions).ListTranscripts):len((*c.CallOptions).ListTranscripts)], opts...)
	it := &TranscriptIterator{}
	req = proto.Clone(req).(*meetpb.ListTranscriptsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.Transcript, string, error) {
		resp := &meetpb.ListTranscriptsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = executeRPC(ctx, c.conferenceRecordsClient.ListTranscripts, req, settings.GRPC, c.logger, "ListTranscripts")
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetTranscripts(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *conferenceRecordsGRPCClient) GetTranscriptEntry(ctx context.Context, req *meetpb.GetTranscriptEntryRequest, opts ...gax.CallOption) (*meetpb.TranscriptEntry, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetTranscriptEntry[0:len((*c.CallOptions).GetTranscriptEntry):len((*c.CallOptions).GetTranscriptEntry)], opts...)
	var resp *meetpb.TranscriptEntry
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = executeRPC(ctx, c.conferenceRecordsClient.GetTranscriptEntry, req, settings.GRPC, c.logger, "GetTranscriptEntry")
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *conferenceRecordsGRPCClient) ListTranscriptEntries(ctx context.Context, req *meetpb.ListTranscriptEntriesRequest, opts ...gax.CallOption) *TranscriptEntryIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListTranscriptEntries[0:len((*c.CallOptions).ListTranscriptEntries):len((*c.CallOptions).ListTranscriptEntries)], opts...)
	it := &TranscriptEntryIterator{}
	req = proto.Clone(req).(*meetpb.ListTranscriptEntriesRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.TranscriptEntry, string, error) {
		resp := &meetpb.ListTranscriptEntriesResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = executeRPC(ctx, c.conferenceRecordsClient.ListTranscriptEntries, req, settings.GRPC, c.logger, "ListTranscriptEntries")
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetTranscriptEntries(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// GetConferenceRecord gets a conference record by conference ID.
func (c *conferenceRecordsRESTClient) GetConferenceRecord(ctx context.Context, req *meetpb.GetConferenceRecordRequest, opts ...gax.CallOption) (*meetpb.ConferenceRecord, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v2/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetConferenceRecord[0:len((*c.CallOptions).GetConferenceRecord):len((*c.CallOptions).GetConferenceRecord)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &meetpb.ConferenceRecord{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "GetConferenceRecord")
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListConferenceRecords lists the conference records. By default, ordered by start time and in
// descending order.
func (c *conferenceRecordsRESTClient) ListConferenceRecords(ctx context.Context, req *meetpb.ListConferenceRecordsRequest, opts ...gax.CallOption) *ConferenceRecordIterator {
	it := &ConferenceRecordIterator{}
	req = proto.Clone(req).(*meetpb.ListConferenceRecordsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.ConferenceRecord, string, error) {
		resp := &meetpb.ListConferenceRecordsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v2/conferenceRecords")

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "ListConferenceRecords")
			if err != nil {
				return err
			}
			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetConferenceRecords(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// GetParticipant gets a participant by participant ID.
func (c *conferenceRecordsRESTClient) GetParticipant(ctx context.Context, req *meetpb.GetParticipantRequest, opts ...gax.CallOption) (*meetpb.Participant, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v2/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetParticipant[0:len((*c.CallOptions).GetParticipant):len((*c.CallOptions).GetParticipant)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &meetpb.Participant{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "GetParticipant")
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListParticipants lists the participants in a conference record. By default, ordered by join
// time and in descending order. This API supports fields as standard
// parameters like every other API. However, when the fields request
// parameter is omitted, this API defaults to 'participants/*, next_page_token'.
func (c *conferenceRecordsRESTClient) ListParticipants(ctx context.Context, req *meetpb.ListParticipantsRequest, opts ...gax.CallOption) *ParticipantIterator {
	it := &ParticipantIterator{}
	req = proto.Clone(req).(*meetpb.ListParticipantsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.Participant, string, error) {
		resp := &meetpb.ListParticipantsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v2/%v/participants", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "ListParticipants")
			if err != nil {
				return err
			}
			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetParticipants(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// GetParticipantSession gets a participant session by participant session ID.
func (c *conferenceRecordsRESTClient) GetParticipantSession(ctx context.Context, req *meetpb.GetParticipantSessionRequest, opts ...gax.CallOption) (*meetpb.ParticipantSession, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v2/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetParticipantSession[0:len((*c.CallOptions).GetParticipantSession):len((*c.CallOptions).GetParticipantSession)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &meetpb.ParticipantSession{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "GetParticipantSession")
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListParticipantSessions lists the participant sessions of a participant in a conference record. By
// default, ordered by join time and in descending order. This API supports
// fields as standard parameters like every other API. However, when the
// fields request parameter is omitted this API defaults to
// 'participantsessions/*, next_page_token'.
func (c *conferenceRecordsRESTClient) ListParticipantSessions(ctx context.Context, req *meetpb.ListParticipantSessionsRequest, opts ...gax.CallOption) *ParticipantSessionIterator {
	it := &ParticipantSessionIterator{}
	req = proto.Clone(req).(*meetpb.ListParticipantSessionsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.ParticipantSession, string, error) {
		resp := &meetpb.ListParticipantSessionsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v2/%v/participantSessions", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "ListParticipantSessions")
			if err != nil {
				return err
			}
			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetParticipantSessions(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// GetRecording gets a recording by recording ID.
func (c *conferenceRecordsRESTClient) GetRecording(ctx context.Context, req *meetpb.GetRecordingRequest, opts ...gax.CallOption) (*meetpb.Recording, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v2/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetRecording[0:len((*c.CallOptions).GetRecording):len((*c.CallOptions).GetRecording)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &meetpb.Recording{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "GetRecording")
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListRecordings lists the recording resources from the conference record. By default,
// ordered by start time and in ascending order.
func (c *conferenceRecordsRESTClient) ListRecordings(ctx context.Context, req *meetpb.ListRecordingsRequest, opts ...gax.CallOption) *RecordingIterator {
	it := &RecordingIterator{}
	req = proto.Clone(req).(*meetpb.ListRecordingsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.Recording, string, error) {
		resp := &meetpb.ListRecordingsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v2/%v/recordings", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "ListRecordings")
			if err != nil {
				return err
			}
			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetRecordings(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// GetTranscript gets a transcript by transcript ID.
func (c *conferenceRecordsRESTClient) GetTranscript(ctx context.Context, req *meetpb.GetTranscriptRequest, opts ...gax.CallOption) (*meetpb.Transcript, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v2/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetTranscript[0:len((*c.CallOptions).GetTranscript):len((*c.CallOptions).GetTranscript)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &meetpb.Transcript{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "GetTranscript")
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListTranscripts lists the set of transcripts from the conference record. By default,
// ordered by start time and in ascending order.
func (c *conferenceRecordsRESTClient) ListTranscripts(ctx context.Context, req *meetpb.ListTranscriptsRequest, opts ...gax.CallOption) *TranscriptIterator {
	it := &TranscriptIterator{}
	req = proto.Clone(req).(*meetpb.ListTranscriptsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.Transcript, string, error) {
		resp := &meetpb.ListTranscriptsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v2/%v/transcripts", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "ListTranscripts")
			if err != nil {
				return err
			}
			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetTranscripts(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// GetTranscriptEntry gets a TranscriptEntry resource by entry ID.
//
// Note: The transcript entries returned by the Google Meet API might not
// match the transcription found in the Google Docs transcript file. This can
// occur when the Google Docs transcript file is modified after generation.
func (c *conferenceRecordsRESTClient) GetTranscriptEntry(ctx context.Context, req *meetpb.GetTranscriptEntryRequest, opts ...gax.CallOption) (*meetpb.TranscriptEntry, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v2/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetTranscriptEntry[0:len((*c.CallOptions).GetTranscriptEntry):len((*c.CallOptions).GetTranscriptEntry)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &meetpb.TranscriptEntry{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "GetTranscriptEntry")
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListTranscriptEntries lists the structured transcript entries per transcript. By default, ordered
// by start time and in ascending order.
//
// Note: The transcript entries returned by the Google Meet API might not
// match the transcription found in the Google Docs transcript file. This can
// occur when the Google Docs transcript file is modified after generation.
func (c *conferenceRecordsRESTClient) ListTranscriptEntries(ctx context.Context, req *meetpb.ListTranscriptEntriesRequest, opts ...gax.CallOption) *TranscriptEntryIterator {
	it := &TranscriptEntryIterator{}
	req = proto.Clone(req).(*meetpb.ListTranscriptEntriesRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*meetpb.TranscriptEntry, string, error) {
		resp := &meetpb.ListTranscriptEntriesResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v2/%v/entries", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			buf, err := executeHTTPRequest(ctx, c.httpClient, httpReq, c.logger, nil, "ListTranscriptEntries")
			if err != nil {
				return err
			}
			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetTranscriptEntries(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}
