GROMACSPair pydantic model openff.interchange.interop.gromacs.models.models.GROMACSPair[source] Bases: DefaultModel A GROMACS pair. Fields atom1 (pydantic.types.PositiveInt) atom2 (pydantic.types.PositiveInt) field atom1: pydantic.types.PositiveInt [Required] The GROMACS index of the first atom in the pair. Constraints exclusiveMinimum = 0 field atom2: pydantic.types.PositiveInt [Required] The GROMACS index of the second atom in the pair. Constraints exclusiveMinimum = 0