import type { Fn } from '../@aileron/declare/index.js';
/** Function that always returns void 0 (undefined) */
export declare const VOID_FUNCTION: Fn;
/** Function that always returns null */
export declare const NULL_FUNCTION: Fn<[], null>;
/** Function that always returns false */
export declare const FALSE_FUNCTION: Fn<[], false>;
/** Function that always returns true */
export declare const TRUE_FUNCTION: Fn<[], true>;
/**
 * Identity function that returns the input value as-is
 * @param value - The value to return
 * @returns The input value unchanged
 */
export declare const IDENTITY_FUNCTION: <T>(value: T) => T;
/** Function that performs no operation (no-op) */
export declare const NOOP_FUNCTION: Fn<[], void>;