docstr: Kill existing alive processes.
docstr_tok: ["Kill","existing","alive","processes","."]
code: def kill(self, signum: _SIGNUM) -> None:
      """Kill existing alive processes."""
  
imports: from abc import ABC, abstractmethod
  from lightning.fabric.strategies.launchers.launcher import _Launcher
  from lightning.pytorch.trainer.connectors.signal_connector import _SIGNUM
label_desc: Use image node_id 1 for calling the _Launcher obj's underlying member method code with example usage: obj.kill(signum) without return types