original_docstring:  Returns a set containing all device entity ids
              that are being tracked. 
docstring: Returns a set containing all device entity ids
  that are being tracked.
docstring_tokens: Returns a set containing all device entity ids that are being tracked .
code: def device_entity_ids(self):
          """ Returns a set containing all device entity ids
              that are being tracked. """
          return set([self.known_devices[device]['entity_id'] for device
                      in self.known_devices
                      if self.known_devices[device]['track']])
code_tokens: def device_entity_ids ( self ) : return set ( [ self . known_devices [ device ] [ 'entity_id' ] for device in self . known_devices if self . known_devices [ device ] [ 'track' ] ] )
short_docstring: Returns a set containing all device entity ids
  that are being tracked.
short_docstring_tokens: Returns a set containing all device entity ids that are being tracked .
comment: """ Returns a set containing all device entity ids
              that are being tracked. """