message: Extra documentation for Uint128 guts
diff: @@ -296,6 +296,8 @@ impl<'a> Sum<&'a Uint128> for Uint128 {
  }
  }
  +/// This module is purely a workaround that lets us ignore lints for all the code
  +/// the `construct_uint!` macro generates.
  #[allow(clippy::all)]
  mod uints {
  uint::construct_uint! {
  @@ -303,6 +305,8 @@ mod uints {
  }
  }
  +/// Only used internally - namely to store the intermediate result of
  +/// multiplying two 128-bit uints.
  use uints::U256;
  #[cfg(test)]
  