RParameter: {
    is<Info = object>(
        this: void,
        node: undefined | RNode<Info>,
    ): node is RParameter<Info>;
    isDotDotDotDot<Info = object>(
        this: void,
        node: undefined | RNode<Info>,
    ): node is RParameter<Info>;
    name: "RParameter";
}

Helper for working with RParameter AST nodes.

Type declaration