isValidMongoDBID method

Implementation

bool isValidMongoDBID() {
  if ((this ?? '').length != 24) {
    return false; // ObjectId should be 24 characters long
  }
  var objectIdRegex = RegExp(r'^[0-9a-fA-F]{24}$');
  return objectIdRegex
      .hasMatch(this ?? ''); // Check if it matches the expected pattern
}