def update(self, friendly_name=values.unset, unique_name=values.unset,<EOL>actions=values.unset, actions_url=values.unset):
return self._proxy.update(<EOL>friendly_name=friendly_name,<EOL>unique_name=unique_name,<EOL>actions=actions,<EOL>actions_url=actions_url,<EOL>)<EOL>
Update the TaskInstance

:param unicode friendly_name: A string to describe the resource
:param unicode unique_name: An application-defined string that uniquely identifies the resource
:param dict actions: The JSON string that specifies the actions that instruct the Assistant on how to perform the task
:param unicode actions_url: The URL from which the Assistant can fetch actions

:returns: Updated TaskInstance
:rtype: twilio.rest.autopilot.v1.assistant.task.TaskInstance