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

def resource_not_found(function_name):
        """
        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
        """
        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]
        )