Symbol symbolForID(String operationId, Object classInstance)

Source

static Symbol symbolForID(String operationId, Object classInstance) {
  var components = operationId.split(".");
  if (components.length != 2 ||
      components.first !=
          MirrorSystem.getName(reflect(classInstance).type.simpleName)) {
    return null;
  }

  return new Symbol(components.last);
}