class_docstr: A TPU pod command runner.
class_docstr_tok: ["A","TPU","pod","command","runner","."]
docstr: Used to run extra initialization commands.
  
  Args:
      as_head: Run as head image or worker.
      file_mounts: Files to copy to the head and worker nodes.
      sync_run_yet: Whether sync has been run yet.
  
  Returns:
      optional: Whether initialization is necessary.
docstr_tok: ["Used","to","run","extra","initialization","commands",".","Args",":","as_head",":","Run","as","head","image","or","worker",".","file_mounts",":","Files","to","copy","to","the","head","and","worker","nodes",".","sync_run_yet",":","Whether","sync","has","been","run","yet",".","Returns",":","optional",":","Whether","initialization","is","necessary","."]
code: def run_init(self, *args, **kwargs) -> Optional[bool]:
      """Used to run extra initialization commands.
  
      Args:
          as_head: Run as head image or worker.
          file_mounts: Files to copy to the head and worker nodes.
          sync_run_yet: Whether sync has been run yet.
  
      Returns:
          optional: Whether initialization is necessary.
      """
      with ThreadPoolExecutor(self.num_connections) as executor:
          results = executor.map(
              lambda i: self._command_runners[i].run_init(
                  *args, **kwargs
              ),
              range(self._num_workers),
          )
      # Note: the `run_init` abstract function may return a bool representing
      # whether initialization is necessary, but this result is rarely used -
      # especially if the node is a worker (which a TPU pod is).
      # Here we return whether any workers require initialization, which may not be
      # the expected result.
      return any(results)
  
imports: import copy
  from concurrent.futures import ThreadPoolExecutor
  from types import ModuleType
  from typing import Any, Dict, Optional
  from ray._private import ray_constants
  from ray.autoscaler._private.command_runner import DockerCommandRunner, SSHCommandRunner
  from ray.autoscaler._private.gcp.node import GCPTPUNode
  from ray.autoscaler.command_runner import CommandRunnerInterface
  from ray.autoscaler.node_provider import NodeProvider
label_desc: Use image node_id 7 for calling the TPUCommandRunner obj's underlying member method code with example usage: obj.run_init() and returns: any