code: def resource_not_found(function_name):
          
          exception_tuple = LambdaErrorResponses.ResourceNotFoundException
  
          return BaseLocalService.service_response(
              LambdaErrorResponses._construct_error_response_body(
                  LambdaErrorResponses.USER_ERROR,
                  "Function not found: arn:aws:lambda:us-west-2:012345678901:function:{}".format(function_name)
              ),
              LambdaErrorResponses._construct_headers(exception_tuple[0]),
              exception_tuple[1]
          )
docs: Creates a Lambda Service ResourceNotFound Response
  
          Parameters
          ----------
          function_name str
              Name of the function that was requested to invoke
  
          Returns
          -------
          Flask.Response
              A response object representing the ResourceNotFound Error