def METHOD_NAME(self, service_response_mock):
    service_response_mock.return_value = "ResourceNotFound"
    response = LambdaErrorResponses.resource_not_found("HelloFunction")
    self.assertEqual(response, "ResourceNotFound")
    service_response_mock.assert_called_once_with(
        '{"Type": "User", "Message": "Function not found: '
        'arn:aws:lambda:us-west-2:012345678901:function:HelloFunction"}',
        {"x-amzn-errortype": "ResourceNotFound", "Content-Type": "application/json"},
        404,
    )