export declare function sqrt(y: bigint): bigint;
export declare function max(a: bigint, ...params: bigint[]): bigint;
export declare function min(a: bigint, ...params: bigint[]): bigint;
export declare function subNoNeg(a: bigint, b: bigint): bigint;
export declare function abs(a: bigint): bigint;
export declare function sign(a: bigint): bigint;