export function hasOnlyChild({ alternatives }: {
    alternatives: any;
}, kidFn: any): any;
export function isAlwaysNonZeroLength(node: any): any;
export function isAlwaysZeroLength({ type }: {
    type: any;
}): boolean;
export function isConsumptiveGroup({ type }: {
    type: any;
}): boolean;
export function isLookaround({ type, kind }: {
    type: any;
    kind: any;
}): boolean;
