original_string: public function get($identifier) : ColumnInterface
      {
          if (false === $this->has($identifier)) {
              throw new ColumnNotFoundException($identifier);
          }
  
          return $this->items[$identifier];
      }
code: public function get($identifier) : ColumnInterface
      {
          if (false === $this->has($identifier)) {
              throw new ColumnNotFoundException($identifier);
          }
  
          return $this->items[$identifier];
      }
code_tokens: public function get ( $ identifier ) : ColumnInterface { if ( false === $ this -> has ( $ identifier ) ) { throw new ColumnNotFoundException ( $ identifier ) ; } return $ this -> items [ $ identifier ] ; }
docstring: Returns column by its identifier
  
  @param string $identifier Column identifier
  
  @return ColumnInterface
docstring_tokens: Returns column by its identifier