import type { array } from "../types";
/**
 * Asserts that a value is a 1D array.
 *
 * Throws a TypeError if the input is not a 1D array. Uses TypeScript's type assertion to narrow the type.
 *
 * @param x The value to check
 * @throws If x is not a 1D array
 *
 * @example Valid array
 * ```ts
 * import { assertThrows } from "jsr:@std/assert";
 *
 * assertarray([1, 2, 3]); // No error
 *
 * ```
 *
 * @example Invalid input throws error
 * ```ts
 * import { assertThrows } from "jsr:@std/assert";
 *
 * assertThrows(() => assertarray(5), TypeError, "Expected array");
 *
 * ```
 *
 * @example Matrix (2D array) throws error
 * ```ts
 * import { assertThrows } from "jsr:@std/assert";
 *
 * assertThrows(() => assertarray([[1, 2], [3, 4]]), TypeError, "Expected array");
 * ```
 */
export default function assertarray(x: unknown): asserts x is array;
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