IS_FETCHABLE
IS_FETCHABLE(digest, EVP_MD)
IS_FETCHABLE(mac, EVP_MAC)
IS_FETCHABLE(kdf, EVP_KDF)
IS_FETCHABLE(rand, EVP_RAND)
IS_FETCHABLE(keymgmt, EVP_KEYMGMT)
IS_FETCHABLE(skeymgmt, EVP_SKEYMGMT)
IS_FETCHABLE(signature, EVP_SIGNATURE)
IS_FETCHABLE(kem, EVP_KEM)
IS_FETCHABLE(asym_cipher, EVP_ASYM_CIPHER)
IS_FETCHABLE(keyexch, EVP_KEYEXCH)
IS_FETCHABLE(decoder, OSSL_DECODER)
IS_FETCHABLE(encoder, OSSL_ENCODER)
IS_FETCHABLE(kem, EVP_KEM)