code: def update(self, enabled):
          
          data = values.of({'Enabled': enabled, })
  
          payload = self._version.update(
              'POST',
              self._uri,
              data=data,
          )
  
          return InstalledAddOnExtensionInstance(
              self._version,
              payload,
              installed_add_on_sid=self._solution['installed_add_on_sid'],
              sid=self._solution['sid'],
          )
docs: Update the InstalledAddOnExtensionInstance
  
          :param bool enabled: A Boolean indicating if the Extension will be invoked
  
          :returns: Updated InstalledAddOnExtensionInstance
          :rtype: twilio.rest.preview.marketplace.installed_add_on.installed_add_on_extension.InstalledAddOnExtensionInstance