docs: def describe(self, fields=None, **kwargs):
          '''
          :param fields: Hash where the keys are field names that should be returned, and values should be set to True (default is that all fields are returned)
          :type fields: dict
          :returns: Description of the remote app object
          :rtype: dict
  
          Returns a dict with a description of the app. The result
          includes the key-value pairs as specified in the API
          documentation for the `/app-xxxx/describe
          <https://wiki.dnanexus.com/API-Specification-v1.0.0/Apps#API-method%253A-%252Fapp-xxxx%255B%252Fyyyy%255D%252Fdescribe>`_
          method.
  
          '''
          describe_input = {}
          if fields:
              describe_input['fields'] = fields
          if self._dxid is not None:
              self._desc = dxpy.api.app_describe(self._dxid, input_params=describe_input, **kwargs)
          else:
              self._desc = dxpy.api.app_describe('app-' + self._name, alias=self._alias,
                                                 input_params=describe_input, **kwargs)
  
          return self._desc