def _to_dict(self):
        """Return a json dictionary representing this model."""
        _dict = {}
        if hasattr(self, 'type') and self.type is not None:
            _dict['type'] = self.type
        if hasattr(self, 'codec') and self.codec is not None:
            _dict['codec'] = self.codec
        if hasattr(self, 'frequency') and self.frequency is not None:
            _dict['frequency'] = self.frequency
        if hasattr(self, 'compression') and self.compression is not None:
            _dict['compression'] = self.compression
        return _dict
def _to_dict ( self ) : _dict = { } if hasattr ( self , 'type' ) and self . type is not None : _dict [ 'type' ] = self . type if hasattr ( self , 'codec' ) and self . codec is not None : _dict [ 'codec' ] = self . codec if hasattr ( self , 'frequency' ) and self . frequency is not None : _dict [ 'frequency' ] = self . frequency if hasattr ( self , 'compression' ) and self . compression is not None : _dict [ 'compression' ] = self . compression return _dict
Return a json dictionary representing this model.