public function setReturnType($php_type, $new_type, $phpdoc_type, $is_php_compatible, $description)
    {
        $new_type = str_replace(['<mixed, mixed>', '<array-key, mixed>', '<empty, empty>'], '', $new_type);

        $this->new_php_return_type = $php_type;
        $this->new_phpdoc_return_type = $phpdoc_type;
        $this->new_psalm_return_type = $new_type;
        $this->return_type_is_php_compatible = $is_php_compatible;
        $this->return_type_description = $description;
    }