code: 
  
  
  
  
  """simple docstring"""
  
  
  
  
  from __future__ import annotations
  
  from typing import Any
  class 							lowerCamelCase		:
  
  
  
  
  
  
  
     def __init__(							self    ,      SCREAMING_SNAKE_CASE_    ,      SCREAMING_SNAKE_CASE_ ):  # noqa: A002
         UpperCamelCase				:   int          =							item
         UpperCamelCase				:   int          =							next
  
  
  
  
  
  
  
  class 							lowerCamelCase		:
  
  
  
  
  
  
  
     def __init__(							self ):
         UpperCamelCase				:   Node | None          =							None
         UpperCamelCase				:   Tuple          =							0
  
  
  
  
  
  
  
     def       a_							(							self    ,      SCREAMING_SNAKE_CASE_ ):
         UpperCamelCase				:   Optional[Any]          =							Node(SCREAMING_SNAKE_CASE_    ,      self.head )
         self.size += 1
  
  
  
  
  
  
  
     def       a_							(							self ):
         # Switched 'self.is_empty()' to 'self.head is None'
         # because mypy was considering the possibility that 'self.head'
         # can be None in below else part and giving error
         if self.head is None:
             return None
         else:
             UpperCamelCase				:   str          =							self.head.item
             UpperCamelCase				:   Optional[int]          =							self.head.next
             self.size -= 1
             return item
  
  
  
  
  
  
  
     def       a_							(							self ):
         return self.head is None
  
  
  
  
  
  
  
     def __str__(							self ):
         if self.is_empty():
             return ""
         else:
             UpperCamelCase				:   Optional[Any]          =							self.head
             UpperCamelCase				:   int          =							""""""
             UpperCamelCase				:   list[str]          =							[]
             while iterate:
                 item_list.append(str(iterate.item ) )
                 UpperCamelCase				:   Dict          =							iterate.next
  
             UpperCamelCase				:   Tuple          =							""" --> """.join(SCREAMING_SNAKE_CASE_ )
  
             return item_str
  
  
  
  
  
  
  
     def __len__(							self ):
         return self.size
  
  
  
  
  
style_context: 
  
  
  
  
  """simple docstring"""
  
  
  
  
  from ...utils import is_transformers_available
  from .pipeline_latent_diffusion_superresolution import LDMSuperResolutionPipeline
  
  
  if is_transformers_available():
    from .pipeline_latent_diffusion import LDMBertModel, LDMTextToImagePipeline
  
  
  
  
  