


from typing import TYPE_CHECKING

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


__UpperCamelCase    		=       {'configuration_xlnet': ['XLNET_PRETRAINED_CONFIG_ARCHIVE_MAP', 'XLNetConfig']}

try:
						if not is_sentencepiece_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						__UpperCamelCase    		=       ['XLNetTokenizer']

try:
						if not is_tokenizers_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						__UpperCamelCase    		=       ['XLNetTokenizerFast']

try:
						if not is_torch_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						__UpperCamelCase    		=       [
						    'XLNET_PRETRAINED_MODEL_ARCHIVE_LIST',
						    'XLNetForMultipleChoice',
						    'XLNetForQuestionAnswering',
						    'XLNetForQuestionAnsweringSimple',
						    'XLNetForSequenceClassification',
						    'XLNetForTokenClassification',
						    'XLNetLMHeadModel',
						    'XLNetModel',
						    'XLNetPreTrainedModel',
						    'load_tf_weights_in_xlnet',
						]

try:
						if not is_tf_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						__UpperCamelCase    		=       [
						    'TF_XLNET_PRETRAINED_MODEL_ARCHIVE_LIST',
						    'TFXLNetForMultipleChoice',
						    'TFXLNetForQuestionAnsweringSimple',
						    'TFXLNetForSequenceClassification',
						    'TFXLNetForTokenClassification',
						    'TFXLNetLMHeadModel',
						    'TFXLNetMainLayer',
						    'TFXLNetModel',
						    'TFXLNetPreTrainedModel',
						]


if TYPE_CHECKING:
						from .configuration_xlnet import XLNET_PRETRAINED_CONFIG_ARCHIVE_MAP, XLNetConfig

						try:
												if not is_sentencepiece_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .tokenization_xlnet import XLNetTokenizer

						try:
												if not is_tokenizers_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .tokenization_xlnet_fast import XLNetTokenizerFast

						try:
												if not is_torch_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .modeling_xlnet import (
												    XLNET_PRETRAINED_MODEL_ARCHIVE_LIST,
												    XLNetForMultipleChoice,
												    XLNetForQuestionAnswering,
												    XLNetForQuestionAnsweringSimple,
												    XLNetForSequenceClassification,
												    XLNetForTokenClassification,
												    XLNetLMHeadModel,
												    XLNetModel,
												    XLNetPreTrainedModel,
												    load_tf_weights_in_xlnet,
												)

						try:
												if not is_tf_available():
																		raise OptionalDependencyNotAvailable()
						except OptionalDependencyNotAvailable:
												pass
						else:
												from .modeling_tf_xlnet import (
												    TF_XLNET_PRETRAINED_MODEL_ARCHIVE_LIST,
												    TFXLNetForMultipleChoice,
												    TFXLNetForQuestionAnsweringSimple,
												    TFXLNetForSequenceClassification,
												    TFXLNetForTokenClassification,
												    TFXLNetLMHeadModel,
												    TFXLNetMainLayer,
												    TFXLNetModel,
												    TFXLNetPreTrainedModel,
												)

else:
						import sys

						__UpperCamelCase    		=       _LazyModule(__name__, globals()['__file__'], _import_structure, module_spec=__spec__)






def        UpperCamelCase_(				_A   :List[str]				,     _A   :Tuple				,     _A   :Any				,     _A   :Tuple				,     _A   :Optional[int]				,     _A   :str  )->		List[str]:
			if index == r:
						for j in range(_A  ):
									print(data[j]				,     end=" "  )
						print(" "  )
						return
			#  When no more elements are there to put in data[]
			if i >= n:
						return
			# current is included, put next at next location
			UpperCamelCase__					=       arr[i]
			combination_util(_A				,     _A				,     _A				,     index + 1				,     _A				,     i + 1  )
			# current is excluded, replace it with
			# next (Note that i+1 is passed, but
			# index is not changed)
			combination_util(_A				,     _A				,     _A				,     _A				,     _A				,     i + 1  )
			# The main function that prints all combinations
			# of size r in arr[] of size n. This function
			# mainly uses combinationUtil()
def        UpperCamelCase_(				_A   :Dict				,     _A   :Optional[Any]				,     _A   :Union[str, Any]  )->		Optional[int]:
			# A temporary array to store all combination one by one
			UpperCamelCase__					=       [0] * r
			# Print all combination using temporary array 'data[]'
			combination_util(_A				,     _A				,     _A				,     0				,     _A				,     0  )


if __name__ == "__main__":
						# Driver code to check the function above
						__UpperCamelCase    		=       [1_0, 2_0, 3_0, 4_0, 5_0]
						print_combination(arr, len(arr), 3)
						# This code is contributed by Ambuj sahu


