



from __future__ import annotations

from typing import Any






class SCREAMING_SNAKE_CASE__	(						_snake_case       ):




    '''simple docstring'''






    pass






class SCREAMING_SNAKE_CASE__	:




    '''simple docstring'''






    def __init__(			self,						lowerCamelCase__						):
        A					:			Any		=  data
        A					:			Node | None		=  None






    def __iter__(			self						):
        A					:			Dict		=  self
        A					:			Optional[int]		=  []
        while node:
            if node in visited:
                raise ContainsLoopError
            visited.append(_lowerCamelCase						)
            yield node.data
            A					:			str		=  node.next_node






    @property
    def      _lowerCAmelCase   (			self						):
        try:
            list(self						)
            return False
        except ContainsLoopError:
            return True


if __name__ == "__main__":
     SCREAMING_SNAKE_CASE_:int 			=		Node(1)
     SCREAMING_SNAKE_CASE_:int 			=		Node(2)
     SCREAMING_SNAKE_CASE_:Optional[int] 			=		Node(3)
     SCREAMING_SNAKE_CASE_:List[str] 			=		Node(4)
     print(root_node.has_loop)  # False
     SCREAMING_SNAKE_CASE_:Optional[Any] 			=		root_node.next_node
     print(root_node.has_loop)  # True

     SCREAMING_SNAKE_CASE_:Dict 			=		Node(5)
     SCREAMING_SNAKE_CASE_:List[Any] 			=		Node(6)
     SCREAMING_SNAKE_CASE_:Optional[int] 			=		Node(5)
     SCREAMING_SNAKE_CASE_:Union[str, Any] 			=		Node(6)
     print(root_node.has_loop)  # False

     SCREAMING_SNAKE_CASE_:Tuple 			=		Node(1)
     print(root_node.has_loop)  # False






from __future__ import annotations

from typing import Any







class 						_snake_case    ( _snake_case				):
 pass







class 						_snake_case    :




 def __init__(						self   ,    _lowerCamelCase       ):
       a		:Any									=			data
       a		:Node | None									=			None




 def __iter__(						self       ):
       a		:Dict									=			self
       a		:Optional[int]									=			[]
       while node:
             if node in visited:
                   raise ContainsLoopError
             visited.append(_lowerCamelCase       )
             yield node.data
             a		:str									=			node.next_node




 @property
 def 			SCREAMING_SNAKE_CASE__							(						self       ):
       try:
             list(self       )
             return False
       except ContainsLoopError:
             return True


if __name__ == "__main__":
     snake_case							:       int										=	Node(1)
     snake_case							:       int										=	Node(2)
     snake_case							:       Optional[int]										=	Node(3)
     snake_case							:       List[str]										=	Node(4)
     print(root_node.has_loop)  # False
     snake_case							:       Optional[Any]										=	root_node.next_node
     print(root_node.has_loop)  # True

     snake_case							:       Dict										=	Node(5)
     snake_case							:       List[Any]										=	Node(6)
     snake_case							:       Optional[int]										=	Node(5)
     snake_case							:       Union[str, Any]										=	Node(6)
     print(root_node.has_loop)  # False

     snake_case							:       Tuple										=	Node(1)
     print(root_node.has_loop)  # False





