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

:param unicode friendly_name: A human-readable name for the Channel.
:param unicode unique_name: A unique, addressable name for the Channel.
:param unicode attributes: An optional metadata field you can use to store any data you wish.

:returns: Updated ChannelInstance
:rtype: twilio.rest.chat.v1.service.channel.ChannelInstance