EVP_KEYMGMT_gettable_params
EVP_KEYMGMT_gettable_params(k), 4);
? EVP_KEYMGMT_gettable_params(pkey->keymgmt)
const OSSL_PARAM *EVP_KEYMGMT_gettable_params(const EVP_KEYMGMT *keymgmt);
if (!TEST_ptr(gettable_params = EVP_KEYMGMT_gettable_params(keymgmt))