def get_instance(self, payload):
        """
        Build an instance of FunctionInstance

        :param dict payload: Payload response from the API

        :returns: twilio.rest.serverless.v1.service.function.FunctionInstance
        :rtype: twilio.rest.serverless.v1.service.function.FunctionInstance
        """
        return FunctionInstance(self._version, payload, service_sid=self._solution['service_sid'], )
Build an instance of FunctionInstance

        :param dict payload: Payload response from the API

        :returns: twilio.rest.serverless.v1.service.function.FunctionInstance
        :rtype: twilio.rest.serverless.v1.service.function.FunctionInstance