



import os

import pytest

from transformers.dynamic_module_utils import get_imports


A_		:     Tuple        =     '''
import os
'''

A_		:     str        =     '''
def foo():
    import os
    return False
'''

A_		:     Optional[int]        =     '''
def foo():
    def bar():
        if True:
            import os
        return False
    return bar()
'''

A_		:     Optional[int]        =     '''
import os

try:
    import bar
except ImportError:
    raise ValueError()
'''

A_		:     Union[str, Any]        =     '''
import os

def foo():
    try:
        import bar
    except ImportError:
        raise ValueError()
'''

A_		:     str        =     '''
import os

try:
    import bar
except (ImportError, AttributeError):
    raise ValueError()
'''

A_		:     Tuple        =     '''
import os

try:
    import bar
except ImportError as e:
    raise ValueError()
'''

A_		:     Optional[int]        =     '''
import os

try:
    import bar
except:
    raise ValueError()
'''

A_		:     Union[str, Any]        =     '''
import os

try:
    import bar
    import baz
except ImportError:
    raise ValueError()
'''

A_		:     Union[str, Any]        =     '''
import os

try:
    import bar
    import baz
except ImportError:
    x = 1
    raise ValueError()
'''

A_		:     Optional[int]        =     [
    TOP_LEVEL_IMPORT,
    IMPORT_IN_FUNCTION,
    DEEPLY_NESTED_IMPORT,
    TOP_LEVEL_TRY_IMPORT,
    GENERIC_EXCEPT_IMPORT,
    MULTILINE_TRY_IMPORT,
    MULTILINE_BOTH_IMPORT,
    MULTIPLE_EXCEPTS_IMPORT,
    EXCEPT_AS_IMPORT,
    TRY_IMPORT_IN_FUNCTION,
]


@pytest.mark.parametrize("case" ,					UpperCAmelCase__					)
def 	UpperCAmelCase__      (      UpperCAmelCase__ :Dict ,					UpperCAmelCase__ :Tuple					):






 '''simple docstring'''

 a						=		os.path.join(UpperCAmelCase__ ,					"test_file.py"					)
 with open(UpperCAmelCase__ ,					"w"					) as _tmp_file:
  _tmp_file.write(UpperCAmelCase__					)

 a						=		get_imports(UpperCAmelCase__					)
 assert parsed_imports == ["os"]






def 	UpperCAmelCase__      (      UpperCAmelCase__ :Any					):






 '''simple docstring'''

 if not head:
  return True
 # split the list to two parts
 a		,  a						=		head.next, head
 while fast and fast.next:
  a						=		fast.next.next
  a						=		slow.next
 a						=		slow.next
 a						=		None  # Don't forget here! But forget still works!
 # reverse the second part
 a						=		None
 while second:
  a						=		second.next
  a						=		node
  a						=		second
  a						=		nxt
 # compare two parts
 # second part has the same or one less node
 while node:
  if node.val != head.val:
   return False
  a						=		node.next
  a						=		head.next
 return True


def 	UpperCAmelCase__      (      UpperCAmelCase__ :str					):






 '''simple docstring'''

 if not head or not head.next:
  return True

 # 1. Get the midpoint (slow)
 a						=		a						=		a						=		head
 while fast and fast.next:
  a		,  a						=		fast.next.next, slow.next

 # 2. Push the second half into the stack
 a						=		[slow.val]
 while slow.next:
  a						=		slow.next
  stack.append(slow.val					)

 # 3. Comparison
 while stack:
  if stack.pop() != cur.val:
   return False
  a						=		cur.next

 return True




def 	UpperCAmelCase__      (      UpperCAmelCase__ :Any					):






 '''simple docstring'''

 if not head or not head.next:
  return True
 a						=		{}
 a						=		0
 while head:
  if head.val in d:
   d[head.val].append(UpperCAmelCase__					)
  else:
   a						=		[pos]
  a						=		head.next
  pos += 1
 a						=		pos - 1
 a						=		0
 for v in d.values():
  if len(UpperCAmelCase__					) % 2 != 0:
   middle += 1
  else:
   a						=		0
   for i in range(0 ,					len(UpperCAmelCase__					)					):
    if v[i] + v[len(UpperCAmelCase__					) - 1 - step] != checksum:
     return False
    step += 1
  if middle > 1:
   return False
 return True

