pub type P53 = PInt<U53>;
struct P53 { pub(crate) n: UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B1>, B0>, B1>, B0>, B1>, }
n: UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B1>, B0>, B1>, B0>, B1>