export declare namespace RingBuffers {
    type RingDelta = number;
    interface IRingBuffer<T> {
        push: (value: T) => void;
        fetch: (delta: RingDelta) => T | undefined;
        prev: () => T | undefined;
        peek: () => T | undefined;
        size: () => number;
        length: () => number;
        toArray: () => ReadonlyArray<T>;
    }
    function create<T>(maxLength: number): IRingBuffer<T>;
}