Name: H5Inmembers
Signature:
  herr_t `H5Inmembers`( H5I_type_t `type`, hsize_t *`num_members` )
Purpose:
  Returns the number of identifiers in a given identifier type.
Description:
  `H5Inmembers` returns the number of identifiers of the identifier type specified in `type`.

  The number of identifiers is returned in `num_members`. If no identifiers of this type have been registered, the type does not exist, or it has been destroyed, `num_members` is returned with the value `0`.

Parameters:

H5I_type_t `type` | IN: Identifier for the identifier type whose member count will be retrieved
hsize_t *`num_members` | OUT: Number of identifiers of the specified identifier type.

Returns:
  Returns a non-negative value on success; otherwise returns negative value.
Fortran90 Interface:
  This function is not supported in FORTRAN 90.