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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 create(self, phone_number, friendly_name=values.unset, call_delay=values.unset, extension=values.unset, status_callback=values.unset, status_callback_method=values.unset):
 """ Create a new ValidationRequestInstance :param unicode phone_number: The phone number to verify in E.164 format :param unicode friendly_name: A string to describe the resource :param unicode call_delay: The number of seconds to delay before initiating the verification call :param unicode extension: The digits to dial after connecting the verification call :param unicode status_callback: The URL we should call to send status information to your application :param unicode status_callback_method: The HTTP method we should use to call status_callback :returns: Newly created ValidationRequestInstance :rtype: twilio.rest.api.v2010.account.validation_request.ValidationRequestInstance """

        data = values.of({
            'PhoneNumber': phone_number,
            'FriendlyName': friendly_name,
            'CallDelay': call_delay,
            'Extension': extension,
            'StatusCallback': status_callback,
            'StatusCallbackMethod': status_callback_method,
        })

        payload = self._version.create(
            'POST',
            self._uri,
            data=data,
        )

        return ValidationRequestInstance(self._version, payload, account_sid=self._solution['account_sid'], )