SSL_quic_max_handshake_flight_len
LSSL_USED(SSL_quic_max_handshake_flight_len);
size_t SSL_quic_max_handshake_flight_len(const SSL *ssl,
LSSL_ALIAS(SSL_quic_max_handshake_flight_len);
SSL_quic_max_handshake_flight_len(ssl, level));