def METHOD_NAME(self, gid, decor):
    done = set()
    for conn in self.adapter._gap_junctions_on.get(gid, []):
        comp = conn.to_compartment
        if comp.id in done:
            continue
        else:
            done.add(comp.id)
        decor.place(f'"comp_{comp.id}"', arbor.junction("gj"), f"gap_{comp.id}")