






"""simple docstring"""



import os
import sys
import unittest


_UpperCamelCase		:  Any						=		os.path.abspath(os.path.dirname(os.path.dirname(os.path.dirname(__file__))))
sys.path.append(os.path.join(git_repo_path, 'utils'))

import check_dummies  # noqa: E402
from check_dummies import create_dummy_files, create_dummy_object, find_backend, read_init  # noqa: E402


# Align TRANSFORMERS_PATH in check_dummies with the current path
_UpperCamelCase		:  Any						=		os.path.join(git_repo_path, 'src', 'transformers')

_UpperCamelCase		:  List[Any]						=		'\n{0} = None\n'

_UpperCamelCase		:  Any						=		'\nclass {0}(metaclass=DummyObject):\n    _backends = {1}\n\n    def __init__(self, *args, **kwargs):\n        requires_backends(self, {1})\n'


_UpperCamelCase		:  List[Any]						=		'\ndef {0}(*args, **kwargs):\n    requires_backends({0}, {1})\n'

class        a     (   unittest.TestCase	):







    def 			UpperCamelCase_      (			self       ):
      lowercase							    =       find_backend('    _import_structure["models.albert"].append("AlbertTokenizerFast")'       )
      self.assertIsNone(_lowerCamelCase       )

      lowercase							    =       find_backend('    if not is_tokenizers_available():'       )
      self.assertEqual(_lowerCamelCase							,		'tokenizers'       )

      lowercase							    =       find_backend('    if not is_tensorflow_text_available():'       )
      self.assertEqual(_lowerCamelCase							,		'tensorflow_text'       )

      lowercase							    =       find_backend('    if not (is_sentencepiece_available() and is_tokenizers_available()):'       )
      self.assertEqual(_lowerCamelCase							,		'sentencepiece_and_tokenizers'       )

      lowercase							    =       find_backend(
          '    if not (is_sentencepiece_available() and is_tensorflow_text_available()):'       )
      self.assertEqual(_lowerCamelCase							,		'sentencepiece_and_tensorflow_text'       )

      lowercase							    =       find_backend(
          '    if not (is_sentencepiece_available() and is_tokenizers_available() and is_vision_available()):'       )
      self.assertEqual(_lowerCamelCase							,		'sentencepiece_and_tokenizers_and_vision'       )







    def 			UpperCamelCase_      (			self       ):
      lowercase							    =       read_init()
      # We don't assert on the exact list of keys to allow for smooth grow of backend-specific objects
      self.assertIn('torch'							,		_lowerCamelCase       )
      self.assertIn('tensorflow_text'							,		_lowerCamelCase       )
      self.assertIn('sentencepiece_and_tokenizers'							,		_lowerCamelCase       )

      # Likewise, we can't assert on the exact content of a key
      self.assertIn('BertModel'							,		objects['torch']       )
      self.assertIn('TFBertModel'							,		objects['tf']       )
      self.assertIn('FlaxBertModel'							,		objects['flax']       )
      self.assertIn('BertModel'							,		objects['torch']       )
      self.assertIn('TFBertTokenizer'							,		objects['tensorflow_text']       )
      self.assertIn('convert_slow_tokenizer'							,		objects['sentencepiece_and_tokenizers']       )







    def 			UpperCamelCase_      (			self       ):
      lowercase							    =       create_dummy_object('CONSTANT'							,		'\'torch\''       )
      self.assertEqual(_lowerCamelCase							,		'\nCONSTANT = None\n'       )

      lowercase							    =       create_dummy_object('function'							,		'\'torch\''       )
      self.assertEqual(
          _lowerCamelCase							,		'\ndef function(*args, **kwargs):\n    requires_backends(function, \'torch\')\n'       )

      lowercase							    =       '\nclass FakeClass(metaclass=DummyObject):\n    _backends = \'torch\'\n\n    def __init__(self, *args, **kwargs):\n        requires_backends(self, \'torch\')\n'
      lowercase							    =       create_dummy_object('FakeClass'							,		'\'torch\''       )
      self.assertEqual(_lowerCamelCase							,		_lowerCamelCase       )







    def 			UpperCamelCase_      (			self       ):
      lowercase							    =       '# This file is autogenerated by the command `make fix-copies`, do not edit.\nfrom ..utils import DummyObject, requires_backends\n\n\nCONSTANT = None\n\n\ndef function(*args, **kwargs):\n    requires_backends(function, ["torch"])\n\n\nclass FakeClass(metaclass=DummyObject):\n    _backends = ["torch"]\n\n    def __init__(self, *args, **kwargs):\n        requires_backends(self, ["torch"])\n'
      lowercase							    =       create_dummy_files({'torch': ['CONSTANT', 'function', 'FakeClass']}       )
      self.assertEqual(dummy_files['torch']							,		_lowerCamelCase       )










"""simple docstring"""



from __future__ import annotations

from collections.abc import Iterator
from typing import Generic, TypeVar

_UpperCamelCase		:  Any						=		TypeVar('T')

class        a     (   Generic[T]	):







    def __init__(			self							,		_lowerCamelCase       ):
      lowercase							    =       data
      lowercase							    =       None







    def __str__(			self       ):
      return F'{self.data}'


class        a     (   Generic[T]	):







    def __init__(			self       ):
      lowercase							    =       None







    def __iter__(			self       ):
      lowercase							    =       self.top
      while node:
        yield node.data
        lowercase							    =       node.next







    def __str__(			self       ):
      return "->".join([str(_lowerCamelCase       ) for item in self]       )







    def __len__(			self       ):
      return len(tuple(iter(self       )       )       )







    def 			UpperCamelCase_      (			self       ):
      return self.top is None







    def 			UpperCamelCase_      (			self							,		_lowerCamelCase       ):
      lowercase							    =       Node(_lowerCamelCase       )
      if not self.is_empty():
        lowercase							    =       self.top
      lowercase							    =       node







    def 			UpperCamelCase_      (			self       ):
      if self.is_empty():
        raise IndexError('pop from empty stack'       )
      assert isinstance(self.top							,		_lowerCamelCase       )
      lowercase							    =       self.top
      lowercase							    =       self.top.next
      return pop_node.data







    def 			UpperCamelCase_      (			self       ):
      if self.is_empty():
        raise IndexError('peek from empty stack'       )

      assert self.top is not None
      return self.top.data







    def 			UpperCamelCase_      (			self       ):
      lowercase							    =       None


if __name__ == "__main__":
    from doctest import testmod

    testmod()


