export declare const sliceString: (source: string, offset: number, length: number) => string;
export declare const LENGTH_OF_ENCODED_TERM_LENGTH = 4;
export declare const encodeTermLength: (val: number) => string;
export declare const decodeTermLength: (str: string) => number;
export declare const LENGTH_OF_ENCODED_QUAD_LENGTH = 5;
export declare const encodeQuadLength: (val: number) => string;
export declare const decodeQuadLength: (str: string) => number;