protected function newGeneratorFromAlias($alias, $length = null)
	{
		$generatorAliases = [
			'numeric' => 'numeric',
			'alphanum' => 'alphaNumeric',
			'token' => 'token',
			'bytes' => 'randomByte'
		];

		if (array_key_exists($alias, $generatorAliases)) {
			return $this->newGenerator($generatorAliases[$alias], $length);
		}
	}