fn from_ec_private_bn(
ec_group: &ConstPointer<'_, EC_GROUP>,
private_big_num: &ConstPointer<'_, BIGNUM>,
) -> Result<ManagedPointer<*mut EVP_PKEY>, KeyRejected>
fn from_ec_private_bn(
ec_group: &ConstPointer<'_, EC_GROUP>,
private_big_num: &ConstPointer<'_, BIGNUM>,
) -> Result<ManagedPointer<*mut EVP_PKEY>, KeyRejected>