



from collections.abc import Callable

class       _SCREAMING_SNAKE_CASE	:





     def __init__(       self :							Tuple     ,  UpperCamelCase :							Callable | None = None				)->None:
      # Stores actual heap items.
      __SCREAMING_SNAKE_CASE       :    list       =	[]
      # Stores indexes of each item for supporting updates and deletion.
      __SCREAMING_SNAKE_CASE       :    dict       =	{}
      # Stores current size of heap.
      __SCREAMING_SNAKE_CASE       :    int       =	0
      # Stores function used to evaluate the score of an item on which basis ordering
      # will be done.
      __SCREAMING_SNAKE_CASE       :    List[Any]       =	key or (lambda UpperCamelCase				: x)





     def 	__snake_case    (       self :							Union[str, Any]     ,  UpperCamelCase :							int				)->int | None:
      return int((i - 1) / 2				) if i > 0 else None





     def 	__snake_case    (       self :							Tuple     ,  UpperCamelCase :							int				)->int | None:
      __SCREAMING_SNAKE_CASE       :    Dict       =	int(2 * i + 1				)
      return left if 0 < left < self.size else None





     def 	__snake_case    (       self :							str     ,  UpperCamelCase :							int				)->int | None:
      __SCREAMING_SNAKE_CASE       :    Any       =	int(2 * i + 2				)
      return right if 0 < right < self.size else None





     def 	__snake_case    (       self :							List[Any]     ,  UpperCamelCase :							int     ,  UpperCamelCase :							int				)->None:
      __SCREAMING_SNAKE_CASE       :    Tuple       =	(
          self.pos_map[self.arr[j][0]],
          self.pos_map[self.arr[i][0]],
      )
      # Then swap the items in the list.
      __SCREAMING_SNAKE_CASE       :    List[Any]       =	self.arr[j], self.arr[i]





     def 	__snake_case    (       self :							str     ,  UpperCamelCase :							int     ,  UpperCamelCase :							int				)->bool:
      return self.arr[i][1] < self.arr[j][1]





     def 	__snake_case    (       self :							int     ,  UpperCamelCase :							int				)->int:
      __SCREAMING_SNAKE_CASE       :    List[str]       =	self._left(UpperCamelCase				)
      __SCREAMING_SNAKE_CASE       :    int       =	self._right(UpperCamelCase				)
      __SCREAMING_SNAKE_CASE       :    Any       =	i

      if left is not None and not self._cmp(UpperCamelCase     ,  UpperCamelCase				):
       __SCREAMING_SNAKE_CASE       :    Union[str, Any]       =	left
      if right is not None and not self._cmp(UpperCamelCase     ,  UpperCamelCase				):
       __SCREAMING_SNAKE_CASE       :    Optional[int]       =	right

      return valid_parent





     def 	__snake_case    (       self :							str     ,  UpperCamelCase :							int				)->None:
      __SCREAMING_SNAKE_CASE       :    Dict       =	self._parent(UpperCamelCase				)
      while parent is not None and not self._cmp(UpperCamelCase     ,  UpperCamelCase				):
       self._swap(UpperCamelCase     ,  UpperCamelCase				)
       __SCREAMING_SNAKE_CASE       :    Optional[int]       =	parent, self._parent(UpperCamelCase				)





     def 	__snake_case    (       self :							List[Any]     ,  UpperCamelCase :							int				)->None:
      __SCREAMING_SNAKE_CASE       :    List[Any]       =	self._get_valid_parent(UpperCamelCase				)
      while valid_parent != index:
       self._swap(UpperCamelCase     ,  UpperCamelCase				)
       __SCREAMING_SNAKE_CASE       :    List[str]       =	valid_parent, self._get_valid_parent(UpperCamelCase				)





     def 	__snake_case    (       self :							Any     ,  UpperCamelCase :							int     ,  UpperCamelCase :							int				)->None:
      if item not in self.pos_map:
       return
      __SCREAMING_SNAKE_CASE       :    Optional[int]       =	self.pos_map[item]
      __SCREAMING_SNAKE_CASE       :    Any       =	[item, self.key(UpperCamelCase				)]
      # Make sure heap is right in both up and down direction.
      # Ideally only one of them will make any change.
      self._heapify_up(UpperCamelCase				)
      self._heapify_down(UpperCamelCase				)





     def 	__snake_case    (       self :							Dict     ,  UpperCamelCase :							int				)->None:
      if item not in self.pos_map:
       return
      __SCREAMING_SNAKE_CASE       :    int       =	self.pos_map[item]
      del self.pos_map[item]
      __SCREAMING_SNAKE_CASE       :    Union[str, Any]       =	self.arr[self.size - 1]
      __SCREAMING_SNAKE_CASE       :    Optional[Any]       =	index
      self.size -= 1
      # Make sure heap is right in both up and down direction. Ideally only one
      # of them will make any change- so no performance loss in calling both.
      if self.size > index:
       self._heapify_up(UpperCamelCase				)
       self._heapify_down(UpperCamelCase				)





     def 	__snake_case    (       self :							Any     ,  UpperCamelCase :							int     ,  UpperCamelCase :							int				)->None:
      __SCREAMING_SNAKE_CASE       :    Optional[int]       =	len(self.arr				)
      if arr_len == self.size:
       self.arr.append([item, self.key(UpperCamelCase				)]				)
      else:
       __SCREAMING_SNAKE_CASE       :    Any       =	[item, self.key(UpperCamelCase				)]
      __SCREAMING_SNAKE_CASE       :    Any       =	self.size
      self.size += 1
      self._heapify_up(self.size - 1				)





     def 	__snake_case    (       self :							int				)->tuple | None:
      return self.arr[0] if self.size else None






     def 	__snake_case    (       self :							str				)->tuple | None:
      __SCREAMING_SNAKE_CASE       :    int       =	self.get_top()
      if top_item_tuple:
       self.delete_item(top_item_tuple[0]				)
      return top_item_tuple






def 	_lowerCAmelCase						(				):



 """simple docstring"""












if __name__ == "__main__":
  import doctest

  doctest.testmod()











import inspect
import os
import unittest

import torch

import accelerate
from accelerate import debug_launcher
from accelerate.test_utils import (
    execute_subprocess_async,
    require_cpu,
    require_huggingface_suite,
    require_multi_gpu,
    require_single_gpu,
)
from accelerate.utils import patch_environment

@require_huggingface_suite
class       _SCREAMING_SNAKE_CASE	(unittest.TestCase ):





     def 	__snake_case    (       self :							Optional[Any]				)->Union[str, Any]:
      __SCREAMING_SNAKE_CASE       :    Optional[Any]       =	inspect.getfile(accelerate.test_utils				)
      __SCREAMING_SNAKE_CASE       :    Union[str, Any]       =	os.path.sep.join(
          mod_file.split(os.path.sep				)[:-1] + ["scripts", "external_deps", "test_metrics.py"]				)

      from accelerate.test_utils.scripts.external_deps import test_metrics  # noqa: F401

      __SCREAMING_SNAKE_CASE       :    Tuple       =	test_metrics





     @require_cpu
     def 	__snake_case    (       self :							Union[str, Any]				)->List[Any]:
      debug_launcher(self.test_metrics.main     ,  num_processes=1				)





     @require_cpu
     def 	__snake_case    (       self :							str				)->List[str]:
      debug_launcher(self.test_metrics.main				)





     @require_single_gpu
     def 	__snake_case    (       self :							Union[str, Any]				)->str:
      self.test_metrics.main()






     @require_multi_gpu
     def 	__snake_case    (       self :							List[str]				)->int:
      print(F"""Found {torch.cuda.device_count()} devices."""				)
      __SCREAMING_SNAKE_CASE       :    Any       =	["torchrun", F"""--nproc_per_node={torch.cuda.device_count()}""", self.test_file_path]
      with patch_environment(omp_num_threads=1				):
       execute_subprocess_async(UpperCamelCase     ,  env=os.environ.copy()				)






