code: def _convert_2_0_0_alpha(topo, topo_path):
      
      topo["revision"] = 6
      for node in topo.get("topology", {}).get("nodes", []):
          if node.get("console_type") == "serial":
              node["console_type"] = "telnet"
          if node["node_type"] in ("vmware", "virtualbox"):
              prop = node.get("properties")
              if "enable_remote_console" in prop:
                  del prop["enable_remote_console"]
      return topo
docs: Convert topologies from GNS3 2.0.0 alpha to 2.0.0 final.
  
      Changes:
       * No more serial console
       * No more option for VMware / VirtualBox remote console (always use telnet)