toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (avro != null) 'avro': avro!,
if (csv != null) 'csv': csv!,
if (orc != null) 'orc': orc!,
if (parquet != null) 'parquet': parquet!,
if (protobuf != null) 'protobuf': protobuf!,
if (thrift != null) 'thrift': thrift!,
};