//#region src/function/once.d.ts
/**
 * Creates a function that is restricted to invoking func once.
 * Repeat calls to the function return the value of the first invocation.
 *
 * @template T - The type of the function
 * @param func - The function to restrict
 * @returns Returns the new restricted function
 *
 * @example
 * let count = 0;
 * const initialize = once(() => ++count);
 * initialize(); // => 1
 * initialize(); // => 1
 * console.log(count); // => 1
 *
 * @example
 * const greet = once((name: string) => `Hello, ${name}!`);
 * greet('Alice'); // => 'Hello, Alice!'
 * greet('Bob'); // => 'Hello, Alice!' (returns cached result)
 */
declare function once<T extends (...args: never[]) => unknown>(func: T): T;
//#endregion
export { once };
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