export declare class Slice {
    readonly data: Uint8Array;
    readonly start: number;
    readonly length: number;
    constructor(data: Uint8Array, start: number, length: number);
    at(index: number): number;
    substring(start: number, length?: number): Slice;
    equals(other: Slice): boolean;
    compare(other: Slice): number;
    toUint8Array(): Uint8Array;
    toString(): string;
    getCommonPrefixLength(other: Slice): number;
    static fromUint8Array(data: Uint8Array): Slice;
}