export declare class FragmentNumberSet {
    readonly base: number;
    readonly numBits: number;
    readonly bitmap: Uint32Array;
    get size(): number;
    constructor(base: number, numBits: number, bitmap?: Uint32Array);
    empty(): boolean;
    add(fragmentNum: number): boolean;
    write(output: DataView, offset: number, littleEndian: boolean): void;
    maxFragmentNumber(): number;
    fragmentNumbers(): Generator<number>;
    toString(): string;
    static fromData(view: DataView, offset: number, littleEndian: boolean): FragmentNumberSet;
}
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