} _notmuch_crypto_t;
GMimeObject *
-_notmuch_crypto_decrypt (GMimeCryptoContext* crypto_ctx,
+_notmuch_crypto_decrypt (notmuch_message_t *message,
+ GMimeCryptoContext* crypto_ctx,
GMimeMultipartEncrypted *part,
GMimeDecryptResult **decrypt_result,
GError **err);