public function setCopyrightHolder($copyrightHolder)
    {
        ObjectHelper::isInstanceOf($copyrightHolder, [Organization::class, PersonInterface::class]);
        
        $this->_copyrightHolder = $copyrightHolder;
        return $this;
    }
public function setCopyrightHolder($copyrightHolder)
    {
        ObjectHelper::isInstanceOf($copyrightHolder, [Organization::class, PersonInterface::class]);
        
        $this->_copyrightHolder = $copyrightHolder;
        return $this;
    }
public function setCopyrightHolder ( $ copyrightHolder ) { ObjectHelper :: isInstanceOf ( $ copyrightHolder , [ Organization :: class , PersonInterface :: class ] ) ; $ this -> _copyrightHolder = $ copyrightHolder ; return $ this ; }
The party holding the legal copyright to the CreativeWork.

@param Organization|Person $copyrightHolder
@return static
The party holding the legal copyright to the CreativeWork .