/**
 * Ensures a given value is converted into an array of elements.
 *
 * @template T - The type of the input value and the elements in the resulting array.
 *
 * @param value - The input value, which can be a single instance of type `T`, an array of instances of type `T`, or a Set of instances of type `T`.
 *
 * @returns An array of elements of type `T`. If the input is `null` or `undefined`, returns an empty array.
 */
export declare function coerceArray<T>(value: T | T[]): T[];