encode method
Implementation
void encode(KeyedArchive object) {
  super.encode(object);
  object.encodeObjectMap("headers", headers);
  object.encodeObject("schema", schema);
  object.encode("description", description);
}void encode(KeyedArchive object) {
  super.encode(object);
  object.encodeObjectMap("headers", headers);
  object.encodeObject("schema", schema);
  object.encode("description", description);
}