pub type N54 = NInt<U54>;
struct N54 { pub(crate) n: UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B1>, B0>, B1>, B1>, B0>, }
n: UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B1>, B0>, B1>, B1>, B0>