<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def list(self):
 """Retrieve list of all apps Returns: :class:`list` of :class:`~swimlane.core.resources.app.App`: List of all retrieved apps """

        response = self._swimlane.request('get', 'app')
        return [App(self._swimlane, item) for item in response.json()]