ListEnvironmentTemplates (smaws-clients.Smaws_Client

val request : 
  Smaws_Lib.Context.t ->
  list_environment_templates_input ->
  (list_environment_templates_output,
    [> Smaws_Lib.Protocols.AwsJson.error
    | `AccessDeniedException of access_denied_exception
    | `InternalServerException of internal_server_exception
    | `ThrottlingException of throttling_exception
    | `ValidationException of validation_exception ])
    Stdlib.result

List environment templates.