NewQuicProxy creates a new UDP proxy.

DirectionBoth is both incoming and outgoing.

DirectionIncoming is the direction from the client to the server.

DirectionOutgoing is the direction from the server to the client.

NoDelay doesn't apply a delay.

NoDropper doesn't drop packets.

Opts are proxy options.

QuicProxy is a QUIC proxy that can drop and delay packets.

DelayCallback is a callback that determines how much delay to apply to a packet.

Direction is the direction a packet is sent.

DropCallback is a callback that determines which packet gets dropped.