toJson method

Implementation

core.Map<core.String, core.dynamic> toJson() => {
      if (endClosed != null) 'endClosed': endClosed!,
      if (endOpen != null) 'endOpen': endOpen!,
      if (startClosed != null) 'startClosed': startClosed!,
      if (startOpen != null) 'startOpen': startOpen!,
    };