original_string: public function setMetaSubject(string $str): PdfInterface
      {
          $this->setProperty('metaSubject', $str);
          $this->mpdf->SetSubject($this->metaSubject);
  
          return $this;
      }
code: public function setMetaSubject(string $str): PdfInterface
      {
          $this->setProperty('metaSubject', $str);
          $this->mpdf->SetSubject($this->metaSubject);
  
          return $this;
      }
code_tokens: public function setMetaSubject ( string $ str ) : PdfInterface { $ this -> setProperty ( 'metaSubject' , $ str ) ; $ this -> mpdf -> SetSubject ( $ this -> metaSubject ) ; return $ this ; }
docstring: Set PDF Meta Subject.
  
  @param string $str  The page subject
  
  @return PdfInterface The current instance
docstring_tokens: Set PDF Meta Subject .