code: import importlib.metadata
  import sys
  
  from transformers.testing_utils import TestCasePlus
  from transformers.utils.versions import require_version, require_version_core
  
  
  lowerCamelCase__	    =				importlib.metadata.version('numpy')
  lowerCamelCase__	    =				'.'.join([str(x) for x in sys.version_info[:3]])
  
  
  
  
  class 					UpperCamelCase	(     snake_case__      ):
  
  
  
  
  					def 							UpperCamelCase_						( self :					Union[str, Any]						):
  
  
  							"""simple docstring"""
  
  
  
  
  							require_version_core("numpy<1000.4.5"						)
  							require_version_core("numpy<1000.4"						)
  							require_version_core("numpy<1000"						)
  
  							# le
  							require_version_core("numpy<=1000.4.5"						)
  							require_version_core(F"""numpy<={numpy_ver}"""						)
  
  							# eq
  							require_version_core(F"""numpy=={numpy_ver}"""						)
  
  							# ne
  							require_version_core("numpy!=1000.4.5"						)
  
  							# ge
  							require_version_core("numpy>=1.0"						)
  							require_version_core("numpy>=1.0.0"						)
  							require_version_core(F"""numpy>={numpy_ver}"""						)
  
  							# gt
  							require_version_core("numpy>1.0.0"						)
  
  							# mix
  							require_version_core("numpy>1.0.0,<1000"						)
  
  							# requirement w/o version
  							require_version_core("numpy"						)
  
  							# unmet requirements due to version conflict
  							for req in ["numpy==1.0.0", "numpy>=1000.0.0", F"""numpy<{numpy_ver}"""]:
  									try:
  											require_version_core(__lowerCamelCase						)
  									except ImportError as e:
  											self.assertIn(F"""{req} is required"""      ,str(__lowerCamelCase						)						)
  											self.assertIn("but found"      ,str(__lowerCamelCase						)						)
  
          # unmet requirements due to missing module
  							for req in ["numpipypie>1", "numpipypie2"]:
  									try:
  											require_version_core(__lowerCamelCase						)
  									except importlib.metadata.PackageNotFoundError as e:
  											self.assertIn(F"""The '{req}' distribution was not found and is required by this application"""      ,str(__lowerCamelCase						)						)
  											self.assertIn("Try: pip install transformers -U"      ,str(__lowerCamelCase						)						)
  
          # bogus requirements formats:
          # 1. whole thing
  							for req in ["numpy??1.0.0", "numpy1.0.0"]:
  									try:
  											require_version_core(__lowerCamelCase						)
  									except ValueError as e:
  											self.assertIn("requirement needs to be in the pip package format"      ,str(__lowerCamelCase						)						)
          # 2. only operators
  							for req in ["numpy=1.0.0", "numpy == 1.00", "numpy<>1.0.0", "numpy><1.00", "numpy>>1.0.0"]:
  									try:
  											require_version_core(__lowerCamelCase						)
  									except ValueError as e:
  											self.assertIn("need one of "      ,str(__lowerCamelCase						)						)
  
  
  
  
  
  
  
  					def 							UpperCamelCase_						( self :					Dict						):
  
  
  							"""simple docstring"""
  
  
  
  
  							require_version("python>=3.6.0"						)
  
  							# not matching requirements
  							for req in ["python>9.9.9", "python<3.0.0"]:
  									try:
  											require_version_core(__lowerCamelCase						)
  									except ImportError as e:
  											self.assertIn(F"""{req} is required"""      ,str(__lowerCamelCase						)						)
  											self.assertIn(F"""but found python=={python_ver}"""      ,str(__lowerCamelCase						)						)
  
  
  
  
  
  
style_context: from __future__ import annotations
  
  from collections.abc import Iterable
  from dataclasses import dataclass
  from typing import Any
  
  
  
  
  class 					UpperCamelCase	:
  					__UpperCamelCase						=   ("""_front""", """_back""", """_len""")
  
  
  
  
  					@dataclass
  					class 					UpperCamelCase	:
  										__UpperCamelCase						=   None
  										__UpperCamelCase						=   None
  										__UpperCamelCase						=   None
  
  
  
  
  					class 					UpperCamelCase	:
  										__UpperCamelCase						=   ("""_cur""",)
  
  
  
  
  										def __init__( self :					Dict      ,_lowerCAmelCase :					Deque._Node | None						):
  
  
  												"""simple docstring"""
  
  
  
  
  												__snake_case		       =     cur
  
  
  
  
  										def __iter__( self :					Dict						):
  
  
  												"""simple docstring"""
  
  
  
  
  												return self
  
  
  
  
  
  
  
  										def 							UpperCamelCase_						( self :					Optional[Any]						):
  
  
  												"""simple docstring"""
  
  
  
  
  												if self._cur is None:
  														# finished iterating
  														raise StopIteration
  												__snake_case		       =     self._cur.val
  												__snake_case		       =     self._cur.next_node
  
  												return val
  
  
  
  
  					def __init__( self :					Optional[int]      ,_lowerCAmelCase :					Iterable[Any] | None = None						):
  
  
  							"""simple docstring"""
  
  
  
  
  							__snake_case		       =     None
  							__snake_case		       =     None
  							__snake_case		       =     0
  
  							if iterable is not None:
  									# append every value to the deque
  									for val in iterable:
  											self.append(_lowerCAmelCase						)
  
  
  
  
  					def 							UpperCamelCase_						( self :					int      ,_lowerCAmelCase :					Any						):
  
  
  							"""simple docstring"""
  
  
  
  
  							__snake_case		       =     self._Node(_lowerCAmelCase      ,_lowerCAmelCase      ,_lowerCAmelCase						)
  							if self.is_empty():
  									# front = back
  									__snake_case		       =     __snake_case		       =     node
  									__snake_case		       =     1
  							else:
  									# connect nodes
  									__snake_case		       =     node
  									__snake_case		       =     self._back
  									__snake_case		       =     node  # assign new back to the new node
  
  									self._len += 1
  
  									# make sure there were no errors
  									assert not self.is_empty(), "Error on appending value."
  
  
  
  
  					def 							UpperCamelCase_						( self :					Any      ,_lowerCAmelCase :					Any						):
  
  
  							"""simple docstring"""
  
  
  
  
  							__snake_case		       =     self._Node(_lowerCAmelCase      ,_lowerCAmelCase      ,_lowerCAmelCase						)
  							if self.is_empty():
  									# front = back
  									__snake_case		       =     __snake_case		       =     node
  									__snake_case		       =     1
  							else:
  									# connect nodes
  									__snake_case		       =     self._front
  									__snake_case		       =     node
  									__snake_case		       =     node  # assign new front to the new node
  
  									self._len += 1
  
  									# make sure there were no errors
  									assert not self.is_empty(), "Error on appending value."
  
  
  
  
  					def 							UpperCamelCase_						( self :					int      ,_lowerCAmelCase :					Iterable[Any]						):
  
  
  							"""simple docstring"""
  
  
  
  
  							for val in iterable:
  									self.append(_lowerCAmelCase						)
  
  
  
  
  					def 							UpperCamelCase_						( self :					Optional[int]      ,_lowerCAmelCase :					Iterable[Any]						):
  
  
  							"""simple docstring"""
  
  
  
  
  							for val in iterable:
  									self.appendleft(_lowerCAmelCase						)
  
  
  
  
  					def 							UpperCamelCase_						( self :					List[Any]						):
  
  
  							"""simple docstring"""
  
  
  
  
  							assert not self.is_empty(), "Deque is empty."
  
  							__snake_case		       =     self._back
  							__snake_case		       =     self._back.prev_node  # set new back
  							# drop the last node - python will deallocate memory automatically
  							__snake_case		       =     None
  
  							self._len -= 1
  
  							return topop.val
  
  
  
  
  					def 							UpperCamelCase_						( self :					List[str]						):
  
  
  							"""simple docstring"""
  
  
  
  
  							assert not self.is_empty(), "Deque is empty."
  
  							__snake_case		       =     self._front
  							__snake_case		       =     self._front.next_node  # set new front and drop the first node
  							__snake_case		       =     None
  
  							self._len -= 1
  
  							return topop.val
  
  
  
  
  					def 							UpperCamelCase_						( self :					int						):
  
  
  							"""simple docstring"""
  
  
  
  
  							return self._front is None
  
  
  
  
  					def __len__( self :					Tuple						):
  
  
  							"""simple docstring"""
  
  
  
  
  							return self._len
  
  
  
  
  					def __eq__( self :					Union[str, Any]      ,_lowerCAmelCase :					object						):
  
  
  							"""simple docstring"""
  
  
  
  
  							if not isinstance(_lowerCAmelCase      ,_lowerCAmelCase						):
  									return NotImplemented
  
  							__snake_case		       =     self._front
  							__snake_case		       =     other._front
  
  							# if the length of the dequeues are not the same, they are not equal
  							if len(self						) != len(_lowerCAmelCase						):
  									return False
  
  							while me is not None and oth is not None:
  									# compare every value
  									if me.val != oth.val:
  											return False
  									__snake_case		       =     me.next_node
  									__snake_case		       =     oth.next_node
  
  							return True
  
  
  
  
  					def __iter__( self :					Tuple						):
  
  
  							"""simple docstring"""
  
  
  
  
  							return Deque._Iterator(self._front						)
  
  
  
  
  
  
  
  					def __repr__( self :					List[Any]						):
  
  
  							"""simple docstring"""
  
  
  
  
  							__snake_case		       =     []
  							__snake_case		       =     self._front
  							while aux is not None:
  									# append the values in a list to display
  									values_list.append(aux.val						)
  									__snake_case		       =     aux.next_node
  
  							return F"""[{", ".join(repr(_lowerCAmelCase						) for val in values_list						)}]"""
  
  
  if __name__ == "__main__":
  		import doctest
  
  		doctest.testmod()
  
  
  
  
  
  