ListAddonInstances (smaws-clients.Smaws_Client_MailManager.ListAddonInstances)

val error_to_string : 
  [ Smaws_Lib.Protocols.AwsJson.error
  | `ValidationException of Types.validation_exception ] ->
  string

val request : 
  'http_type Smaws_Lib.Context.t ->
  Types.list_addon_instances_request ->
  (Types.list_addon_instances_response,
    [> Smaws_Lib.Protocols.AwsJson.error
    | `ValidationException of Types.validation_exception ])
    Stdlib.result

val request_with_metadata : 
  'http_type Smaws_Lib.Context.t ->
  Types.list_addon_instances_request ->
  (Types.list_addon_instances_response Smaws_Lib.Response.t,
    [> Smaws_Lib.Protocols.AwsJson.error
    | `ValidationException of Types.validation_exception ]
    * Smaws_Lib.Response.metadata)
    Stdlib.result