/**
 * @param {*} value - the value to check.
 * @param {string} config.collectionPath - the path to the collection within formData
 * @param {string} config.caseInsensitive - true to ignore case, assumes string values
 * @param {object} component - the component definition
 * @param {object} formData - the current form data
 * @returns true if components value is not the same in any other entry in the collection
 */
declare const mustBeUniqueInCollection: (value: any, config: any, component: any, formData: any) => boolean;
export default mustBeUniqueInCollection;