






'''simple docstring'''





from typing import Any


class 				snake_case__     :




     def __init__(       self       :						Tuple     )  ->    List[Any]:
        UpperCAmelCase_     :   Optional[Any]       =   []
        UpperCAmelCase_     :   List[str]       =   0




     def __str__(       self       :						Union[str, Any]     )  ->    List[str]:
        UpperCAmelCase_     :   List[Any]       =   "<" + str(self.stack     )[1:-1] + ">"
        return printed




     def 						A     (       self       :						Optional[Any]							,				_A       :						Any     )  ->    None:
        self.stack.append(_A     )
        UpperCAmelCase_     :   Any       =   self.length + 1




     def 						A     (       self       :						List[Any]     )  ->    Any:
        self.rotate(1     )
        UpperCAmelCase_     :   Any       =   self.stack[self.length - 1]
        UpperCAmelCase_     :   List[str]       =   self.stack[:-1]
        self.rotate(self.length - 1     )
        UpperCAmelCase_     :   List[str]       =   self.length - 1
        return dequeued




     def 						A     (       self       :						Union[str, Any]							,				_A       :						int     )  ->    None:

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




     def 						A     (       self       :						Optional[int]     )  ->    Any:
        UpperCAmelCase_     :   Tuple       =   self.get()
        self.put(_A     )
        self.rotate(self.length - 1     )
        return front





     def 						A     (       self       :						str     )  ->    int:
        return self.length










'''simple docstring'''





from typing import TYPE_CHECKING

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


_UpperCamelCase		:		str								=			{}

try:
						if not is_sentencepiece_available():
												raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
						pass
else:
						_UpperCamelCase		:		List[Any]								=			['MBart50Tokenizer']

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

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


