import type { DeleteOp, InsertOp, Op, RetainOp } from "./interface";
export declare const isRetainOp: (op: Op) => op is RetainOp;
export declare const isInsertOp: (op: Op) => op is InsertOp;
export declare const isDeleteOp: (op: Op) => op is DeleteOp;
export declare const getOpLength: (op: Op) => number;