pub unsafe extern "C" fn secp256k1_musig_nonce_gen(
cx: *const Context,
secnonce: *mut MusigSecNonce,
pubnonce: *mut MusigPubNonce,
session_secrand32: *mut c_uchar,
seckey: *const c_uchar,
pubkey: *const PublicKey,
msg32: *const c_uchar,
keyagg_cache: *const MusigKeyAggCache,
extra_input32: *const c_uchar,
) -> c_int