QueryCmd creates and returns the query command.

QueryContentCmd creates and returns the query content command.

QueryContentsByCuratorCmd creates and returns the query contents-by-curator command.

QueryContentsCmd creates and returns the query contents command.

TxCmd creates and returns the tx command.

TxCreateCmd creates and returns the tx create command.

TxDeleteCmd creates and returns the tx delete command.

TxUpdateCuratorCmd creates and returns the tx update-curator command.

TxUpdateMetadataCmd creates and returns the tx update-metadata command.