import type { array, matrix } from "../types";
/**
 * Flip a matrix left to right.
 *
 * Reverses the order of the columns in the input matrix, flipping it left to right.
 *
 * @param x The input array or matrix.
 * @returns The matrix with its columns flipped left to right.
 * @throws If no input is provided.
 *
 * @example Flip a 2D matrix left to right
 * ```ts
 * import { assertEquals } from "jsr:@std/assert";
 *
 * assertEquals(fliplr([[1, 4], [2, 5], [3, 6]]), [[4, 1], [5, 2], [6, 3]]);
 *
 * ```
 *
 * @example Flip a 1D array (no change)
 * ```ts
 * import { assertEquals } from "jsr:@std/assert";
 *
 * assertEquals(fliplr([1, 2, 3]), [1, 2, 3]);
 *
 * ```
 */
export default function fliplr(x: number | array | matrix): number | array | matrix;
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