code: def is_active(self):
      return self.sidecar_process is not None
  
file_path: metaflow/metaflow/sidecar/sidecar.py
imports: from .sidecar_subprocess import SidecarSubProcess
label_desc: Use image node_id 5 for calling the Sidecar obj's underlying member method code with example usage: obj.is_active() and returns: unknown