import { nullAction } from "./util.mjs";
export declare function mergeExpressions(a: any, b: any, path: any, actions: typeof nullAction | undefined, hints: any): any;
export declare function decodeExpressions(script: any, hint: any): {
    op: string;
    args: any;
    like?: undefined;
    overwrite?: undefined;
} | {
    like: boolean;
    overwrite: boolean;
    op: string;
    args: any;
};
export declare function mergeDecodedExpressions(dest: any, source: any): any;
export declare function encodeExpressions(encoded: any): any;