original_string: public function id($column = 'id')
      {
          $this->int($column)->unsigned()->autoIncrement();
  
          return $this->primary($column);
      }
code: public function id($column = 'id')
      {
          $this->int($column)->unsigned()->autoIncrement();
  
          return $this->primary($column);
      }
code_tokens: public function id ( $ column = 'id' ) { $ this -> int ( $ column ) -> unsigned ( ) -> autoIncrement ( ) ; return $ this -> primary ( $ column ) ; }
docstring: Add a int auto increment id to table
  
  @param string $column
  @return $this
docstring_tokens: Add a int auto increment id to table