original_string: public function where(
          $column,
          $operator = null,
          $value = null,
          $boolean = 'and'
      ) {
          if (is_array($column)) {
              $this->_where = $column;
          }
  
          return $this;
      }
code: public function where(
          $column,
          $operator = null,
          $value = null,
          $boolean = 'and'
      ) {
          if (is_array($column)) {
              $this->_where = $column;
          }
  
          return $this;
      }
code_tokens: public function where ( $ column , $ operator = null , $ value = null , $ boolean = 'and' ) { if ( is_array ( $ column ) ) { $ this -> _where = $ column ; } return $ this ; }
docstring: Set where conditions
  
  @param  [type] $column
  @param  [type] $operator
  @param  [type] $value
  @param  string $boolean
  @return [type]
docstring_tokens: Set where conditions