toJson method

Implementation

core.Map<core.String, core.dynamic> toJson() {
  final relation = this.relation;
  final relationExtensions = this.relationExtensions;
  final source = this.source;
  final target = this.target;
  return {
    'relation': ?relation,
    'relationExtensions': ?relationExtensions,
    'source': ?source,
    'target': ?target,
  };
}