code: def invoke(ctx, name, profile, stage):
      # type: (click.Context, str, str, str) -> None
      
      factory = ctx.obj['factory']  # type: CLIFactory
      factory.profile = profile
  
      try:
          invoke_handler = factory.create_lambda_invoke_handler(name, stage)
          payload = factory.create_stdin_reader().read()
          invoke_handler.invoke(payload)
      except NoSuchFunctionError as e:
          err = click.ClickException(
              "could not find a lambda function named %s." % e.name)
          err.exit_code = 2
          raise err
      except botocore.exceptions.ClientError as e:
          error = e.response['Error']
          err = click.ClickException(
              "got '%s' exception back from Lambda\n%s"
              % (error['Code'], error['Message']))
          err.exit_code = 1
          raise err
      except UnhandledLambdaError:
          err = click.ClickException(
              "Unhandled exception in Lambda function, details above.")
          err.exit_code = 1
          raise err
      except ReadTimeout as e:
          err = click.ClickException(e.message)
          err.exit_code = 1
          raise err
docs: Invoke the deployed lambda function NAME.