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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _handle_request_error(self, orig_request, error, start_response):
 """Handle a request error, converting it to a WSGI response. Args: orig_request: An ApiRequest, the original request from the user. error: A RequestError containing information about the error. start_response: A function with semantics defined in PEP-333. Returns: A string containing the response body. """

    headers = [('Content-Type', 'application/json')]
    status_code = error.status_code()
    body = error.rest_error()

    response_status = '%d %s' % (status_code,
                                 httplib.responses.get(status_code,
                                                       'Unknown Error'))
    cors_handler = self._create_cors_handler(orig_request)
    return util.send_wsgi_response(response_status, headers, body,
                                   start_response, cors_handler=cors_handler)