AddRoleToDBCluster (smaws-clients.Smaws_Client

val error_to_string : 
  [ Smaws_Lib.Protocols.AwsQuery.error
  | `DBClusterNotFoundFault of Types.db_cluster_not_found_fault
  | `DBClusterRoleAlreadyExistsFault of
    Types.db_cluster_role_already_exists_fault
  | `DBClusterRoleQuotaExceededFault of
    Types.db_cluster_role_quota_exceeded_fault
  | `InvalidDBClusterStateFault of Types.invalid_db_cluster_state_fault ] ->
  string

val request : 
  'http_type Smaws_Lib.Context.t ->
  Types.add_role_to_db_cluster_message ->
  (Smaws_Lib.Smithy_api.Types.unit_,
    [> Smaws_Lib.Protocols.AwsQuery.error
    | `DBClusterNotFoundFault of Types.db_cluster_not_found_fault
    | `DBClusterRoleAlreadyExistsFault of
      Types.db_cluster_role_already_exists_fault
    | `DBClusterRoleQuotaExceededFault of
      Types.db_cluster_role_quota_exceeded_fault
    | `InvalidDBClusterStateFault of Types.invalid_db_cluster_state_fault ])
    Stdlib.result

val request_with_metadata : 
  'http_type Smaws_Lib.Context.t ->
  Types.add_role_to_db_cluster_message ->
  (Smaws_Lib.Smithy_api.Types.unit_ Smaws_Lib.Response.t,
    [> Smaws_Lib.Protocols.AwsQuery.error
    | `DBClusterNotFoundFault of Types.db_cluster_not_found_fault
    | `DBClusterRoleAlreadyExistsFault of
      Types.db_cluster_role_already_exists_fault
    | `DBClusterRoleQuotaExceededFault of
      Types.db_cluster_role_quota_exceeded_fault
    | `InvalidDBClusterStateFault of Types.invalid_db_cluster_state_fault ]
    * Smaws_Lib.Response.metadata)
    Stdlib.result