code: def _call_and_handle_interrupt(
      trainer: "pl.Trainer",
      trainer_fn: Callable,
      *args: Any,
      **kwargs: Any,
  ) -> Any:
      r"""Error handling, intended to be used only for main trainer function entry points (fit, validate, test, predict)
      as all errors should funnel through them.
  
      Args:
          trainer_fn: one of (fit, validate, test, predict)
          *args: positional arguments to be passed to the `trainer_fn`
          **kwargs: keyword arguments to be passed to `trainer_fn`
  
      """
      try:
          if trainer.strategy.launcher is not None:
              return trainer.strategy.launcher.launch(
                  trainer_fn, *args, trainer=trainer, **kwargs
              )
          return trainer_fn(*args, **kwargs)
  
      except _TunerExitException:
          _call_teardown_hook(trainer)
          trainer._teardown()
          trainer.state.status = TrainerStatus.FINISHED
          trainer.state.stage = None
  
      # TODO: Unify both exceptions below, where `KeyboardError` doesn't re-raise
      except KeyboardInterrupt as exception:
          rank_zero_warn(
              "Detected KeyboardInterrupt, attempting graceful shutdown..."
          )
          # user could press Ctrl+c many times... only shutdown once
          if not trainer.interrupted:
              trainer.state.status = TrainerStatus.INTERRUPTED
              _call_callback_hooks(trainer, "on_exception", exception)
              trainer.strategy.on_exception(exception)
              for logger in trainer.loggers:
                  logger.finalize("failed")
      except BaseException as exception:
          trainer.state.status = TrainerStatus.INTERRUPTED
          _call_callback_hooks(trainer, "on_exception", exception)
          trainer.strategy.on_exception(exception)
          for logger in trainer.loggers:
              logger.finalize("failed")
          trainer._teardown()
          # teardown might access the stage so we reset it after
          trainer.state.stage = None
          raise
  
imports: import logging
  from copy import deepcopy
  from typing import Any, Callable, Dict, Optional, Type, Union
  from packaging.version import Version
  import lightning.pytorch
  from lightning.fabric.utilities.device_dtype_mixin import _DeviceDtypeModuleMixin
  from lightning.pytorch.callbacks import Checkpoint, EarlyStopping
  from lightning.pytorch.trainer.states import TrainerStatus
  from lightning.pytorch.utilities.exceptions import _TunerExitException
  from lightning.pytorch.utilities.model_helpers import is_overridden
  from lightning.pytorch.utilities.rank_zero import rank_zero_warn
label_desc: Use image node_id 1 for calling a global function with example usage: _call_and_handle_interrupt(trainer, trainer_fn) and returns: trainer_fn, trainer