pub unsafe extern "C" fn sodot_ecdsa_derive_private_key_from_xpriv(
xpriv: ConstStr,
derivation_path: ConstSlice_u32,
privkey_out: *mut HeapString,
) -> ResultFFIpub unsafe extern "C" fn sodot_ecdsa_derive_private_key_from_xpriv(
xpriv: ConstStr,
derivation_path: ConstSlice_u32,
privkey_out: *mut HeapString,
) -> ResultFFI