toJson method Null safety

Map<String, dynamic> toJson()

Implementation

core.Map<core.String, core.dynamic> toJson() => {
      if (awarded != null) 'awarded': awarded!,
      if (awardedException != null) 'awardedException': awardedException!,
      if (ecoCertificate != null) 'ecoCertificate': ecoCertificate!,
    };