export type First<AS extends readonly unknown[]> = number extends AS['length']
  ? AS[0] | undefined
  : AS[0];
/**
 * Returns the first element of the array.
 * @param array The array to get the first element of.
 *
 * @example
 * ```typescript
 * const arr = [1, 2, 3];
 * first(arr); // => 1
 * ```
 */
declare const first: <AS extends unknown[] | readonly unknown[]>(
  array: AS,
) => First<AS>;
export default first;
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