<?php

declare(strict_types=1);

return [
    [
        [
            ['Jan', 'Feb', 'Mar', 'Apr'],
            [100, 200, 150, 300],
        ],
        [
            ['Jan', 100],
            ['Feb', 200],
            ['Mar', 150],
            ['Apr', 300],
        ],
    ],
    [
        [
            ['a', 'aa'],
            ['b', 'ab'],
            ['c', 'ac'],
            ['d', 'ad'],
        ],
        [
            ['a', 'b', 'c', 'd'],
            ['aa', 'ab', 'ac', 'ad'],
        ],
    ],
    [
        [[3.14]],
        3.14,
    ],
    'single row' => [
        [[1], [2], [3], [4]],
        [[1, 2, 3, 4]],
    ],
    'single row 1-D' => [
        [[1], [2], [3], [4]],
        [1, 2, 3, 4],
    ],
    'single column' => [
        [[1, 2, 3, 4]],
        [[1], [2], [3], [4]],
    ],
    'single cell' => [
        [[1]],
        [[1]],
    ],
];