code: def template(self, lambda_arn, role_arn, output=None, json=False):
          
  
          if not lambda_arn:
              raise ClickException("Lambda ARN is required to template.")
  
          if not role_arn:
              raise ClickException("Role ARN is required to template.")
  
          self.zappa.credentials_arn = role_arn
  
          # Create the template!
          template = self.zappa.create_stack_template(
                                              lambda_arn=lambda_arn,
                                              lambda_name=self.lambda_name,
                                              api_key_required=self.api_key_required,
                                              iam_authorization=self.iam_authorization,
                                              authorizer=self.authorizer,
                                              cors_options=self.cors,
                                              description=self.apigateway_description,
                                              policy=self.apigateway_policy,
                                              endpoint_configuration=self.endpoint_configuration
                                          )
  
          if not output:
              template_file = self.lambda_name + '-template-' + str(int(time.time())) + '.json'
          else:
              template_file = output
          with open(template_file, 'wb') as out:
              out.write(bytes(template.to_json(indent=None, separators=(',',':')), "utf-8"))
  
          if not json:
              click.echo(click.style("Template created", fg="green", bold=True) + ": " + click.style(template_file, bold=True))
          else:
              with open(template_file, 'r') as out:
                  print(out.read())
docs: Only build the template file.