Serialisation (hint)

[NicolasLagaillardie]

In impl_a

fn get_graph() {
// initialise graph with a root node
// return aux_get_graph
}

fn aux_get_graph(
// graph and previous nodes/choices
) {
// depending on the current state of the meshed channel, create the correct edge and node
// create a new meshedchannel with all the continuations and return its aux_get_graph
}