public function shuffleExamples()
{
return ['empty array' => [[]], 'numeric indices' => [['z', '7d', 'i', '7', 'm', 8, 3, 'q']], 'string keys' => [['foo' => 'bar', 'baz' => 'foo', 'bar' => 'baz']], 'mixed keys' => [['bar', '24' => 'foo', 'i' => 181.84, 'foo' => 'abc', '84216', 76, 'k' => 53]]];
}