::

   pgcopydb snapshot: Create and export a snapshot on the source database
   usage: pgcopydb snapshot  --source ... 
   
     --source                      Postgres URI to the source database
     --dir                         Work directory to use
     --follow                      Implement logical decoding to replay changes
     --plugin                      Output plugin to use (pgoutput, test_decoding, wal2json)
     --wal2json-numeric-as-string  Print numeric data type as string when using wal2json output plugin
     --slot-name                   Use this Postgres replication slot name
   
