import type { compareFn, mapFn } from './_types';
/**
 * Checks if object has an entry.
 * @param x an object
 * @param e entry?
 * @param fc compare function (a, b)
 * @param fm map function (v, k, x)
 */
declare function isEntry(x: object, e: [string, any], fc?: compareFn, fm?: mapFn): boolean;
export default isEntry;
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