public function data(array $data = null)
    {
        $this->data = array_merge((array) $this->data, (array) $data);

        return $this;
    }
public function data(array $data = null)
    {
        $this->data = array_merge((array) $this->data, (array) $data);

        return $this;
    }
public function data ( array $ data = null ) { $ this -> data = array_merge ( ( array ) $ this -> data , ( array ) $ data ) ; return $ this ; }
Add additional data to the error.

@param  array|null $data
@return $this
Add additional data to the error .