tls_key_share_new
if ((s->s3->hs.key_share = tls_key_share_new(group_id)) == NULL)
if ((s->s3->hs.key_share = tls_key_share_new(group)) == NULL) {
if ((s->s3->hs.key_share = tls_key_share_new(group)) == NULL) {
tls_key_share_new(ctx->hs->tls13.server_group)) == NULL)
if ((ctx->hs->key_share = tls_key_share_new(groups[0])) == NULL)
if ((ctx->hs->tls13.key_share = tls_key_share_new(groups[1])) ==
struct tls_key_share *tls_key_share_new(uint16_t group_id);