Function connect_with_dcid_and_buffer_factory 

pub fn connect_with_dcid_and_buffer_factory<F: BufFactory>(
    server_name: Option<&str>,
    scid: &ConnectionId<'_>,
    dcid: &ConnectionId<'_>,
    local: SocketAddr,
    peer: SocketAddr,
    config: &mut Config,
) -> Result<Connection<F>>

Available on crate feature custom-client-dcid only.

Creates a new client-side connection, with a custom buffer generation method using the given dcid initially. Be aware the RFC places requirements for unpredictability and length on the client DCID field. [RFC9000]: https://datatracker.ietf.org/doc/html/rfc9000#section-7.2-3

The buffers generated can be anything that can be drereferenced as a byte slice. See connect and BufFactory for more info.