

"""simple docstring"""






from __future__ import annotations

import queue
class        _lowercase					:







     def __init__(      self ,						UpperCamelCase_       ):
      __magic_name__     =      data
      __magic_name__     =      None
      __magic_name__     =      None





def 	lowercase      (   ) ->      TreeNode:
 print('''\n********Press N to stop entering at any point of time********\n'''						)
 __magic_name__     =      input('''Enter the value of the root node: '''						).strip().lower()
 __magic_name__     =      queue.Queue()
 __magic_name__     =      TreeNode(int(__UpperCamelCase						)						)
 q.put(__UpperCamelCase						)
 while not q.empty():
  __magic_name__     =      q.get()
  __magic_name__     =      f'''Enter the left node of {node_found.data}: '''
  __magic_name__     =      input(__UpperCamelCase						).strip().lower() or '''n'''
  if check == "n":
   return tree_node
  __magic_name__     =      TreeNode(int(__UpperCamelCase						)						)
  __magic_name__     =      left_node
  q.put(__UpperCamelCase						)
  __magic_name__     =      f'''Enter the right node of {node_found.data}: '''
  __magic_name__     =      input(__UpperCamelCase						).strip().lower() or '''n'''
  if check == "n":
   return tree_node
  __magic_name__     =      TreeNode(int(__UpperCamelCase						)						)
  __magic_name__     =      right_node
  q.put(__UpperCamelCase						)
 raise





def 	lowercase      (   __UpperCamelCase						) ->      None:
 if not isinstance(__UpperCamelCase      ,   __UpperCamelCase						) or not node:
  return
 print(node.data      ,   end=''','''						)
 pre_order(node.left						)
 pre_order(node.right						)





def 	lowercase      (   __UpperCamelCase						) ->      None:
 if not isinstance(__UpperCamelCase      ,   __UpperCamelCase						) or not node:
  return
 in_order(node.left						)
 print(node.data      ,   end=''','''						)
 in_order(node.right						)





def 	lowercase      (   __UpperCamelCase						) ->      None:
 if not isinstance(__UpperCamelCase      ,   __UpperCamelCase						) or not node:
  return
 post_order(node.left						)
 post_order(node.right						)
 print(node.data      ,   end=''','''						)





def 	lowercase      (   __UpperCamelCase						) ->      None:
 if not isinstance(__UpperCamelCase      ,   __UpperCamelCase						) or not node:
  return
 __magic_name__     =      queue.Queue()
 q.put(__UpperCamelCase						)
 while not q.empty():
  __magic_name__     =      q.get()
  print(node_dequeued.data      ,   end=''','''						)
  if node_dequeued.left:
   q.put(node_dequeued.left						)
  if node_dequeued.right:
   q.put(node_dequeued.right						)





def 	lowercase      (   __UpperCamelCase						) ->      None:
 if not isinstance(__UpperCamelCase      ,   __UpperCamelCase						) or not node:
  return
 __magic_name__     =      queue.Queue()
 q.put(__UpperCamelCase						)
 while not q.empty():
  __magic_name__     =      []
  while not q.empty():
   __magic_name__     =      q.get()
   print(node_dequeued.data      ,   end=''','''						)
   if node_dequeued.left:
    list_.append(node_dequeued.left						)
   if node_dequeued.right:
    list_.append(node_dequeued.right						)
  print()
  for node in list_:
   q.put(__UpperCamelCase						)





def 	lowercase      (   __UpperCamelCase						) ->      None:
 if not isinstance(__UpperCamelCase      ,   __UpperCamelCase						) or not node:
  return
 __magic_name__     =      []
 __magic_name__     =      node
 while n or stack:
  while n:  # start from root node, find its left child
   print(n.data      ,   end=''','''						)
   stack.append(__UpperCamelCase						)
   __magic_name__     =      n.left
  # end of while means current node doesn't have left child
  __magic_name__     =      stack.pop()
  # start to traverse its right child
  __magic_name__     =      n.right





def 	lowercase      (   __UpperCamelCase						) ->      None:
 if not isinstance(__UpperCamelCase      ,   __UpperCamelCase						) or not node:
  return
 __magic_name__     =      []
 __magic_name__     =      node
 while n or stack:
  while n:
   stack.append(__UpperCamelCase						)
   __magic_name__     =      n.left
  __magic_name__     =      stack.pop()
  print(n.data      ,   end=''','''						)
  __magic_name__     =      n.right





def 	lowercase      (   __UpperCamelCase						) ->      None:
 if not isinstance(__UpperCamelCase      ,   __UpperCamelCase						) or not node:
  return
 __magic_name__   ,						__magic_name__     =      [], []
 __magic_name__     =      node
 stacka.append(__UpperCamelCase						)
 while stacka:  # to find the reversed order of post order, store it in stack2
  __magic_name__     =      stacka.pop()
  if n.left:
   stacka.append(n.left						)
  if n.right:
   stacka.append(n.right						)
  stacka.append(__UpperCamelCase						)
 while stacka:  # pop up from stack2 will be the post order
  print(stacka.pop().data      ,   end=''','''						)





def 	lowercase      (   __UpperCamelCase = ""      ,   __UpperCamelCase=50      ,   __UpperCamelCase="*"						) ->      str:
 if not s:
  return "\n" + width * char
 __magic_name__   ,						__magic_name__     =      divmod(width - len(__UpperCamelCase						) - 2      ,   2						)
 return f'''{left * char} {s} {(left + extra) * char}'''


if __name__ == "__main__":
 import doctest

 doctest.testmod()
 print(prompt("Binary Tree Traversals"))

 __lowerCamelCase										=		build_tree()
 print(prompt("Pre Order Traversal"))
 pre_order(node)
 print(prompt() + "\n")

 print(prompt("In Order Traversal"))
 in_order(node)
 print(prompt() + "\n")

 print(prompt("Post Order Traversal"))
 post_order(node)
 print(prompt() + "\n")

 print(prompt("Level Order Traversal"))
 level_order(node)
 print(prompt() + "\n")

 print(prompt("Actual Level Order Traversal"))
 level_order_actual(node)
 print("*" * 50 + "\n")

 print(prompt("Pre Order Traversal - Iteration Version"))
 pre_order_iter(node)
 print(prompt() + "\n")

 print(prompt("In Order Traversal - Iteration Version"))
 in_order_iter(node)
 print(prompt() + "\n")

 print(prompt("Post Order Traversal - Iteration Version"))
 post_order_iter(node)
 print(prompt())




"""simple docstring"""






import unittest

from transformers import is_torch_available
from transformers.testing_utils import require_sentencepiece, require_tokenizers, require_torch, slow, torch_device


if is_torch_available():
 from transformers import AutoModelForSeqaSeqLM, AutoTokenizer
@require_torch
@require_sentencepiece
@require_tokenizers
class        _lowercase					(     unittest.TestCase     ):







     @slow
     def 	lowerCAmelCase__    (      self       ):
      __magic_name__     =      AutoModelForSeqaSeqLM.from_pretrained('''google/mt5-small''' ,						return_dict=UpperCamelCase_       ).to(UpperCamelCase_       )
      __magic_name__     =      AutoTokenizer.from_pretrained('''google/mt5-small'''       )

      __magic_name__     =      tokenizer('''Hello there''' ,						return_tensors='''pt'''       ).input_ids
      __magic_name__     =      tokenizer('''Hi I am''' ,						return_tensors='''pt'''       ).input_ids

      __magic_name__     =      model(input_ids.to(UpperCamelCase_       ) ,						labels=labels.to(UpperCamelCase_       )       ).loss
      __magic_name__     =      -(labels.shape[-1] * loss.item())

      __magic_name__     =      -8_4.9_1_2_7
      self.assertTrue(abs(mtf_score - EXPECTED_SCORE       ) < 1E-4       )

