Opaque handle returned by Quiver.HTTP3.open_datagram_channel/4.
Carries the H/3 connection pid, stream id, and per-channel ref. Users
pattern-match only via %Quiver.HTTP3.Channel{}.
Summary
Types
@type t() :: %Quiver.HTTP3.Channel{ h3_conn: pid(), origin: {atom(), String.t(), :inet.port_number()}, ref: reference(), response_headers: nil | [{binary(), binary()}], status: nil | 100..599, stream_id: non_neg_integer(), worker_pid: pid() }