Smaws_Client_BackupGateway.ListGatewaysval request :
Smaws_Lib.Context.t ->
list_gateways_input ->
(list_gateways_output, [> Smaws_Lib.Protocols.AwsJson.error ]) Stdlib.resultLists backup gateways owned by an Amazon Web Services account in an Amazon Web Services Region. The returned list is ordered by gateway Amazon Resource Name (ARN).