code: def _convert_2_0_0(topo, topo_path):
      
      topo["revision"] = 8
  
      for node in topo.get("topology", {}).get("nodes", []):
          if "properties" in node:
              if node["node_type"] == "vpcs":
                  if "startup_script_path" in node["properties"]:
                      del node["properties"]["startup_script_path"]
                  if "startup_script" in node["properties"]:
                      del node["properties"]["startup_script"]
              elif node["node_type"] == "dynamips" or node["node_type"] == "iou":
                  if "startup_config" in node["properties"]:
                      del node["properties"]["startup_config"]
                  if "private_config" in node["properties"]:
                      del node["properties"]["private_config"]
                  if "startup_config_content" in node["properties"]:
                      del node["properties"]["startup_config_content"]
                  if "private_config_content" in node["properties"]:
                      del node["properties"]["private_config_content"]
      return topo
docs: Convert topologies from GNS3 2.0.0 to 2.1
  
      Changes:
       * Remove startup_script_path from VPCS and base config file for IOU and Dynamips