original_string: public function remove_shortcut($id): ?int
    {
      if ( \bbn\str::is_uid($id) ){
        return $this->pref->delete_bit($id);
      }
      return null;
    }
code: public function remove_shortcut($id): ?int
    {
      if ( \bbn\str::is_uid($id) ){
        return $this->pref->delete_bit($id);
      }
      return null;
    }
code_tokens: public function remove_shortcut ( $ id ) : ? int { if ( \ bbn \ str :: is_uid ( $ id ) ) { return $ this -> pref -> delete_bit ( $ id ) ; } return null ; }
docstring: Removes an user'shortcut
  
  @param string $id The shortcut's ID
  @return null|int
docstring_tokens: Removes an user shortcut