openff.bespokefit.schema.smirnoff.VdWSMIRKS model openff.bespokefit.schema.smirnoff.VdWSMIRKS[source] Bases: BaseSMIRKSParameter Fields attributes (Set[Literal['epsilon', 'sigma']]) type (Literal['vdW']) field type: Literal['vdW'] = 'vdW' field attributes: Set[Literal['epsilon', 'sigma']] [Required] The attributes of the parameter which should be optimized. classmethod from_smirnoff(parameter: vdWType) → VdWSMIRKS[source]