import type { UnionToIntersection } from "../types/logic/unionToIntersection";
/**
 * Merges multiple objects into a single object (shallow merge)
 * @param target - The target object to merge into
 * @param sources - The source objects to merge from
 * @returns The merged object
 *
 * @remarks
 * **Prototype pollution warning:** This function does not filter out
 * prototype-polluting keys (`__proto__`, `constructor`, `prototype`).
 * If processing user-controlled input, sanitize with the appropriate
 * `removePrototype*` helper before calling this function:
 * - `removePrototype` — shallow sanitization of a single object
 * - `removePrototypeDeep` — recursive sanitization of a single object (for deeply nested data)
 * - `removePrototypeMap` — shallow sanitization of an array of objects
 * - `removePrototypeMapDeep` — recursive sanitization of an array of objects (for deeply nested data)
 */
export declare const merge: <T extends Record<string, unknown>, U extends Record<string, unknown>[]>(target: T, ...sources: U) => T & UnionToIntersection<U[number]>;