



from typing import TYPE_CHECKING

from ...utils import (
    OptionalDependencyNotAvailable,
    _LazyModule,
    is_flax_available,
    is_sentencepiece_available,
    is_tf_available,
    is_tokenizers_available,
    is_torch_available,
)


__snake_case		:int 						=	{
    '''configuration_big_bird''': ['''BIG_BIRD_PRETRAINED_CONFIG_ARCHIVE_MAP''', '''BigBirdConfig''', '''BigBirdOnnxConfig'''],
}

try:
 if not is_sentencepiece_available():
  raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
 pass
else:
 __snake_case		:str 						=	['''BigBirdTokenizer''']

try:
 if not is_tokenizers_available():
  raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
 pass
else:
 __snake_case		:str 						=	['''BigBirdTokenizerFast''']

try:
 if not is_torch_available():
  raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
 pass
else:
 __snake_case		:Union[str, Any] 						=	[
     '''BIG_BIRD_PRETRAINED_MODEL_ARCHIVE_LIST''',
     '''BigBirdForCausalLM''',
     '''BigBirdForMaskedLM''',
     '''BigBirdForMultipleChoice''',
     '''BigBirdForPreTraining''',
     '''BigBirdForQuestionAnswering''',
     '''BigBirdForSequenceClassification''',
     '''BigBirdForTokenClassification''',
     '''BigBirdLayer''',
     '''BigBirdModel''',
     '''BigBirdPreTrainedModel''',
     '''load_tf_weights_in_big_bird''',
 ]

try:
 if not is_flax_available():
  raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
 pass
else:
 __snake_case		:Any 						=	[
     '''FlaxBigBirdForCausalLM''',
     '''FlaxBigBirdForMaskedLM''',
     '''FlaxBigBirdForMultipleChoice''',
     '''FlaxBigBirdForPreTraining''',
     '''FlaxBigBirdForQuestionAnswering''',
     '''FlaxBigBirdForSequenceClassification''',
     '''FlaxBigBirdForTokenClassification''',
     '''FlaxBigBirdModel''',
     '''FlaxBigBirdPreTrainedModel''',
 ]

if TYPE_CHECKING:
 from .configuration_big_bird import BIG_BIRD_PRETRAINED_CONFIG_ARCHIVE_MAP, BigBirdConfig, BigBirdOnnxConfig

 try:
  if not is_sentencepiece_available():
   raise OptionalDependencyNotAvailable()
 except OptionalDependencyNotAvailable:
  pass
 else:
  from .tokenization_big_bird import BigBirdTokenizer

 try:
  if not is_tokenizers_available():
   raise OptionalDependencyNotAvailable()
 except OptionalDependencyNotAvailable:
  pass
 else:
  from .tokenization_big_bird_fast import BigBirdTokenizerFast

 try:
  if not is_torch_available():
   raise OptionalDependencyNotAvailable()
 except OptionalDependencyNotAvailable:
  pass
 else:
  from .modeling_big_bird import (
      BIG_BIRD_PRETRAINED_MODEL_ARCHIVE_LIST,
      BigBirdForCausalLM,
      BigBirdForMaskedLM,
      BigBirdForMultipleChoice,
      BigBirdForPreTraining,
      BigBirdForQuestionAnswering,
      BigBirdForSequenceClassification,
      BigBirdForTokenClassification,
      BigBirdLayer,
      BigBirdModel,
      BigBirdPreTrainedModel,
      load_tf_weights_in_big_bird,
  )

 try:
  if not is_flax_available():
   raise OptionalDependencyNotAvailable()
 except OptionalDependencyNotAvailable:
  pass
 else:
  from .modeling_flax_big_bird import (
      FlaxBigBirdForCausalLM,
      FlaxBigBirdForMaskedLM,
      FlaxBigBirdForMultipleChoice,
      FlaxBigBirdForPreTraining,
      FlaxBigBirdForQuestionAnswering,
      FlaxBigBirdForSequenceClassification,
      FlaxBigBirdForTokenClassification,
      FlaxBigBirdModel,
      FlaxBigBirdPreTrainedModel,
  )

else:
 import sys

 __snake_case		:Dict 						=	_LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)










from __future__ import annotations

class        _A			:



       def __init__(						self				:	str	,						__SCREAMING_SNAKE_CASE				:	int = 0):


           '''simple docstring'''

           __a					=							value
           __a					=							None
           __a					=							None





def 	__snake_case      (     _UpperCAmelCase  ,					_UpperCAmelCase							):
    if treea is None:
        return treea
    if treea is None:
        return treea

    __a					=							treea.value + treea.value
    __a					=							merge_two_binary_trees(treea.left  ,					treea.left							)
    __a					=							merge_two_binary_trees(treea.right  ,					treea.right							)
    return treea





def 	__snake_case      (     _UpperCAmelCase							):
    if root:
        print(root.value							)
        print_preorder(root.left							)
        print_preorder(root.right							)


if __name__ == "__main__":
 __snake_case		:List[Any] 						=	Node(1)
 __snake_case		:Optional[Any] 						=	Node(2)
 __snake_case		:Dict 						=	Node(3)
 __snake_case		:int 						=	Node(4)

 __snake_case		:List[str] 						=	Node(2)
 __snake_case		:List[str] 						=	Node(4)
 __snake_case		:Tuple 						=	Node(6)
 __snake_case		:str 						=	Node(9)
 __snake_case		:List[str] 						=	Node(5)

 print('''Tree1 is: ''')
 print_preorder(treea)
 print('''Tree2 is: ''')
 print_preorder(treea)
 __snake_case		:Union[str, Any] 						=	merge_two_binary_trees(treea, treea)
 print('''Merged Tree is: ''')
 print_preorder(merged_tree)





