/** @ignore */
export declare function getBool(_data: any, _index: number, byte: number, bit: number): boolean;
/** @ignore */
export declare function getBit(_data: any, _index: number, byte: number, bit: number): 0 | 1;
/** @ignore */
export declare function setBool(bytes: Uint8Array, index: number, value: any): boolean;
/** @ignore */
export declare function truncateBitmap(offset: number, length: number, bitmap: Uint8Array): Uint8Array;
/** @ignore */
export declare function packBools(values: Iterable<any>): Uint8Array;
/** @ignore */
export declare class BitIterator<T> implements IterableIterator<T> {
    private bytes;
    private length;
    private context;
    private get;
    bit: number;
    byte: number;
    byteIndex: number;
    index: number;
    constructor(bytes: Uint8Array, begin: number, length: number, context: any, get: (context: any, index: number, byte: number, bit: number) => T);
    next(): IteratorResult<T>;
    [Symbol.iterator](): this;
}
/**
 * Compute the population count (the number of bits set to 1) for a range of bits in a Uint8Array.
 * @param vector The Uint8Array of bits for which to compute the population count.
 * @param lhs The range's left-hand side (or start) bit
 * @param rhs The range's right-hand side (or end) bit
 */
/** @ignore */
export declare function popcnt_bit_range(data: Uint8Array, lhs: number, rhs: number): number;
/** @ignore */
export declare function popcnt_array(arr: ArrayBufferView, byteOffset?: number, byteLength?: number): number;
/** @ignore */
export declare function popcnt_uint32(uint32: number): number;