Function gluon_base::types::pretty_print

pub fn pretty_print<'a, I, T>(
    printer: &Printer<'a, I>, 
    typ: &'a T
) -> DocBuilder<'a, Arena<'a>> where
    I: AsRef<str> + 'a,
    T: Deref<Target = Type<I, T>> + HasSpan + Commented,