def __call__(self, sid):
return FieldContext(<EOL>self._version,<EOL>assistant_sid=self._solution['<STR_LIT>'],<EOL>task_sid=self._solution['<STR_LIT>'],<EOL>sid=sid,<EOL>)<EOL>
Constructs a FieldContext

:param sid: The unique string that identifies the resource

:returns: twilio.rest.autopilot.v1.assistant.task.field.FieldContext
:rtype: twilio.rest.autopilot.v1.assistant.task.field.FieldContext