class_docstr: Swap a running blocks class in a notebook with the latest cell contents.
code: def track(self, demo: gr.Blocks):
      self._running[self.current_cell] = demo
  
file_path: gradio/gradio/ipython_ext.py
imports: import gradio
  from gradio.networking import App
  from gradio.utils import BaseReloader
label_desc: Use image node_id 6 for calling the JupyterReloader obj's underlying member method code with example usage: obj.track(demo) without return types