export interface PackedMapSetter {
    set(key: number, value: number): void;
}
export declare class PackedMap {
    private map;
    private init?;
    constructor(init: Map<number, Uint8Array | Uint16Array | Uint32Array> | ((setter: PackedMapSetter) => void));
    initialize(): void;
    get(key: number): number | undefined;
    get size(): number;
}
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