code: def get_eligible_users_for_extension(self, extension_id, options):
          
          route_values = {}
          if extension_id is not None:
              route_values['extensionId'] = self._serialize.url('extension_id', extension_id, 'str')
          query_parameters = {}
          if options is not None:
              query_parameters['options'] = self._serialize.query('options', options, 'str')
          response = self._send(http_method='GET',
                                location_id='5434f182-7f32-4135-8326-9340d887c08a',
                                version='5.0-preview.1',
                                route_values=route_values,
                                query_parameters=query_parameters)
          return self._deserialize('[str]', self._unwrap_collection(response))
docs: GetEligibleUsersForExtension.
          [Preview API] Returns users that are currently eligible to assign the extension to. the list is filtered based on the value of ExtensionFilterOptions
          :param str extension_id: The extension to check the eligibility of the users for.
          :param str options: The options to filter the list.
          :rtype: [str]