code: func hasBuiltinRole(checker services.AccessChecker, name string) bool {
  	if _, ok := checker.(BuiltinRoleSet); !ok {
  		return false
  	}
  	if !checker.HasRole(name) {
  		return false
  	}
  
  	return true
  }
docs: // hasBuiltinRole checks the type of the role set returned and the name.
  // Returns true if role set is builtin and the name matches.