original_string: public function data(array $data = null)
      {
          if (is_null($data)) {
              return $this->data;
          }
  
          $this->data = $data;
  
          return $this;
      }
code: public function data(array $data = null)
      {
          if (is_null($data)) {
              return $this->data;
          }
  
          $this->data = $data;
  
          return $this;
      }
code_tokens: public function data ( array $ data = null ) { if ( is_null ( $ data ) ) { return $ this -> data ; } $ this -> data = $ data ; return $ this ; }
docstring: Set or get data.
  
  @param array $data
  
  @return $this
docstring_tokens: Set or get data .