ChargeIncrementTopologyKey pydantic model openff.interchange.models.ChargeIncrementTopologyKey[source] Bases: DefaultModel Subclass of TopologyKey for use with charge increments only. Fields other_atom_indices (tuple[int, ...]) this_atom_index (int) field this_atom_index: int [Required] field other_atom_indices: tuple[int, ...] [Required] property atom_indices: tuple[int, ...] Alias for this_atom_index.