Translates the given choice message by choosing a translation according to a number.
@api
string $id The message id (may also be an object that can be cast to string):
integer $number The number to use to find the indice of the message:
array $parameters An array of parameters for the message:
string $domain The domain for the message:
string $locale The locale:
string The translated string
public function transChoice($id, $number, array $parameters = array(), $domain = null, $locale = null);