export declare class Pool<T> {
    private objs;
    private isAlive;
    private objsIdMap;
    private availableIds;
    private currentSize;
    private arr;
    private createFn;
    constructor(createFn: () => T, initialSize?: number);
    private expand;
    get: (id: number) => T;
    obtain(): T;
    free(obj: T | number): void;
    clear(): void;
    forEach(fn: (obj: T, i: number) => void): void;
    getAll: () => T[];
    count: () => number;
}
export declare function createPool<T>(createFn: () => T, initialSize?: number): Pool<T>;