pub unsafe extern "C" fn gcry_cipher_setkey(
handle: gcry_cipher_hd_t,
key: *const c_void,
keylen: size_t,
) -> gcry_error_tpub unsafe extern "C" fn gcry_cipher_setkey(
handle: gcry_cipher_hd_t,
key: *const c_void,
keylen: size_t,
) -> gcry_error_t