pub type N81 = NInt<U81>;
struct N81 { pub(crate) n: UInt<UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B1>, B0>, B0>, B0>, B1>, }
n: UInt<UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B1>, B0>, B0>, B0>, B1>