from typing import Any





class 			__snake_case  :




					def __init__(       self		)					->  Optional[int]:



									'''simple docstring'''







									snake_case__ :     Dict 							=				[]
									snake_case__ :     Dict 							=				0




					def __str__(       self		)					->  List[str]:



									'''simple docstring'''







									snake_case__ :     int 							=				'<' + str(self.stack		)[1:-1] + '>'
									return printed




					def       __a      (       self   ,	__UpperCamelCase		)					->  None:



									'''simple docstring'''







									self.stack.append(__UpperCamelCase		)
									snake_case__ :     Union[str, Any] 							=				self.length + 1




					def       __a      (       self		)					->  Any:



									'''simple docstring'''







									self.rotate(1		)
									snake_case__ :     str 							=				self.stack[self.length - 1]
									snake_case__ :     List[Any] 							=				self.stack[:-1]
									self.rotate(self.length - 1		)
									snake_case__ :     Optional[Any] 							=				self.length - 1
									return dequeued




					def       __a      (       self   ,	__UpperCamelCase		)					->  None:



									'''simple docstring'''







									for _ in range(__UpperCamelCase		):
													snake_case__ :     Dict 							=				self.stack[0]
													snake_case__ :     Any 							=				self.stack[1:]
													self.put(__UpperCamelCase		)
													snake_case__ :     Optional[Any] 							=				self.length - 1




					def       __a      (       self		)					->  Any:



									'''simple docstring'''







									snake_case__ :     Union[str, Any] 							=				self.get()
									self.put(__UpperCamelCase		)
									self.rotate(self.length - 1		)
									return front




					def       __a      (       self		)					->  int:



									'''simple docstring'''







									return self.length



from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_sentencepiece_available, is_tokenizers_available


lowerCAmelCase__					:       Optional[int]		=       {}

try:
				if not is_sentencepiece_available():
								raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
				pass
else:
				lowerCAmelCase__					:       Tuple		=       ['''MBart50Tokenizer''']

try:
				if not is_tokenizers_available():
								raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
				pass
else:
				lowerCAmelCase__					:       Tuple		=       ['''MBart50TokenizerFast''']


if TYPE_CHECKING:
				try:
								if not is_sentencepiece_available():
												raise OptionalDependencyNotAvailable()
				except OptionalDependencyNotAvailable:
								pass
				else:
								from .tokenization_mbartaa import MBartaaTokenizer

				try:
								if not is_tokenizers_available():
												raise OptionalDependencyNotAvailable()
				except OptionalDependencyNotAvailable:
								pass
				else:
								from .tokenization_mbartaa_fast import MBartaaTokenizerFast

else:
				import sys

				lowerCAmelCase__					:       Optional[int]		=       _LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)


