openff.recharge.charges.vsite.TrivalentLonePairParameter model openff.recharge.charges.vsite.TrivalentLonePairParameter[source] Bases: _VirtualSiteParameter Fields type (Literal['TrivalentLonePair']) field type: Literal['TrivalentLonePair'] = 'TrivalentLonePair' classmethod local_frame_weights() → ndarray[source] property local_frame_coordinates: numpy.ndarray