original_string: public function leftJoinSub($query, $as, $first, $operator = null, $second = null)
      {
          return $this->joinSub($query, $as, $first, $operator, $second, 'left');
      }
code: public function leftJoinSub($query, $as, $first, $operator = null, $second = null)
      {
          return $this->joinSub($query, $as, $first, $operator, $second, 'left');
      }
code_tokens: public function leftJoinSub ( $ query , $ as , $ first , $ operator = null , $ second = null ) { return $ this -> joinSub ( $ query , $ as , $ first , $ operator , $ second , 'left' ) ; }
docstring: Add a subquery left join to the query.
  
  @param  \Closure|\Illuminate\Database\Query\Builder|string $query
  @param  string  $as
  @param  \Closure|string  $first
  @param  string|null  $operator
  @param  string|null  $second
  @return \Illuminate\Database\Query\Builder|static
docstring_tokens: Add a subquery left join to the query .