toJson method
Implementation
Map<String, dynamic> toJson() {
final from = this.from;
final op = this.op;
final path = this.path;
final value = this.value;
return {
if (from != null) 'from': from,
if (op != null) 'op': op.toValue(),
if (path != null) 'path': path,
if (value != null) 'value': value,
};
}