export type Exports = {
    [key: string]: any;
};
export type PatchFunction = (exports: Exports, name: string) => Exports;
export type Patch = {
    apply: PatchFunction;
    versionConstraint: string | null;
};
export type PatchOptions = {
    errorIfAlreadyLoaded?: boolean;
    versionConstraint?: string | null;
};
export declare function safeResolve(packagePath: string): string | null;
export declare function patchModules(modules: string[], apply: PatchFunction, patchOptions?: PatchOptions): void;
export declare function patchAll(patch: Patch): void;