public function getVoidStatement(Actor $actor): self
    {
        return new Statement(
            null,
            $actor,
            Verb::createVoidVerb(),
            $this->getStatementReference()
        );
    }
public function getVoidStatement(Actor $actor): self
    {
        return new Statement(
            null,
            $actor,
            Verb::createVoidVerb(),
            $this->getStatementReference()
        );
    }
public function getVoidStatement ( Actor $ actor ) : self { return new Statement ( null , $ actor , Verb :: createVoidVerb ( ) , $ this -> getStatementReference ( ) ) ; }
Returns a Statement that voids the current Statement.
Returns a Statement that voids the current Statement .