-mod byte_utils {
-
-use std::str::FromStr;
-use std::ffi::c_void;
-use core::convert::Infallible;
-use bitcoin::hashes::Hash;
-use crate::c_types::*;
-
-}
-mod chacha20 {
-
-use std::str::FromStr;
-use std::ffi::c_void;
-use core::convert::Infallible;
-use bitcoin::hashes::Hash;
-use crate::c_types::*;
-
-mod real_chacha {