def make_error(message, code=400, code_string='InvalidParameter'):
response = Response()
response._content = """<ErrorResponse xmlns="http://sns.amazonaws.com/doc/2010-03-31/"><Error>
<Type>Sender</Type>
<Code>{code_string}</Code>
<Message>{message}</Message>
</Error><RequestId>{req_id}</RequestId>
</ErrorResponse>""".format(message=message, code_string=code_string, req_id=short_uid())
response.status_code = code
return response
