code: def main():
      watcher = WatcherClient()
      stream = watcher.create_stream(expr="lambda vars:vars.x**2")
      stream.console_debug = True
      input("pause")
  
imports: from tensorwatch.watcher_client import WatcherClient
  import time
  from tensorwatch import utils
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types