public function testToArray()
{
$arr = $this->_List->toArray();
$this->assertTrue(\is_array($arr));
$this->assertCount(5, $arr);
$this->assertEquals('hello', $arr[0]);
}
/**
* Returns this set as a binary string in big-endian format
* @return string
*/
public function __toString()
{
return $this->_List->map(function ($v) {
return (int) $v;
})->reverse()->join('');
}