code: 
  
  
  from __future__ import annotations
  
  from collections.abc import Iterator
  from typing import Any
  
  
  class 		_SCREAMING_SNAKE_CASE    :
  
  
       def __init__(     self       ,				A_						):
         _UpperCAmelCase		:       Any       =    data
         _UpperCAmelCase		:       Node | None       =    None
  
  
  
  
       def __str__(     self						):
         return F'''{self.data}'''
  
  
  class 		_SCREAMING_SNAKE_CASE    :
  
  
       def __init__(     self						):
         _UpperCAmelCase		:       Node | None       =    None
         _UpperCAmelCase		:       Node | None       =    None
  
  
       def __iter__(     self						):
         _UpperCAmelCase		:       Optional[int]       =    self.front
         while node:
           yield node.data
           _UpperCAmelCase		:       List[str]       =    node.next
  
  
       def __len__(     self						):
         return len(tuple(iter(self						)						)						)
  
  
       def __str__(     self						):
         return " <- ".join(str(A_						) for item in self						)
  
  
       def 					__snake_case(     self						):
         return len(self						) == 0
  
  
       def 					__snake_case(     self       ,				A_						):
         _UpperCAmelCase		:       Optional[int]       =    Node(A_						)
         if self.is_empty():
           _UpperCAmelCase		:       Tuple       =    node
         else:
           assert isinstance(self.rear       ,				A_						)
           _UpperCAmelCase		:       Any       =    node
           _UpperCAmelCase		:       Tuple       =    node
  
  
       def 					__snake_case(     self						):
         if self.is_empty():
           raise IndexError("""dequeue from empty queue"""						)
         assert isinstance(self.front       ,				A_						)
         _UpperCAmelCase		:       Optional[Any]       =    self.front
         _UpperCAmelCase		:       Union[str, Any]       =    self.front.next
         if self.front is None:
           _UpperCAmelCase		:       int       =    None
         return node.data
  
  
  
  
       def 					__snake_case(     self						):
         _UpperCAmelCase		:       int       =    None
  
  
  if __name__ == "__main__":
   from doctest import testmod
  
   testmod()
  
  
  
  
  
  
style_context: 
  
  
  from dataclasses import dataclass
  from enum import Enum
  from typing import List, Optional, Union
  
  import numpy as np
  import PIL
  from PIL import Image
  
  from ...utils import BaseOutput, is_torch_available, is_transformers_available
  
  
  @dataclass
  class 		_SCREAMING_SNAKE_CASE    (	A    ):
       __SCREAMING_SNAKE_CASE    				=						{
           '''sld_warmup_steps''': 1_5,
           '''sld_guidance_scale''': 2_0,
           '''sld_threshold''': 0.0,
           '''sld_momentum_scale''': 0.0,
           '''sld_mom_beta''': 0.0,
       }
       __SCREAMING_SNAKE_CASE    				=						{
           '''sld_warmup_steps''': 1_0,
           '''sld_guidance_scale''': 1_0_0_0,
           '''sld_threshold''': 0.01,
           '''sld_momentum_scale''': 0.3,
           '''sld_mom_beta''': 0.4,
       }
       __SCREAMING_SNAKE_CASE    				=						{
           '''sld_warmup_steps''': 7,
           '''sld_guidance_scale''': 2_0_0_0,
           '''sld_threshold''': 0.025,
           '''sld_momentum_scale''': 0.5,
           '''sld_mom_beta''': 0.7,
       }
       __SCREAMING_SNAKE_CASE    				=						{
           '''sld_warmup_steps''': 0,
           '''sld_guidance_scale''': 5_0_0_0,
           '''sld_threshold''': 1.0,
           '''sld_momentum_scale''': 0.5,
           '''sld_mom_beta''': 0.7,
       }
  
  
  @dataclass
  class 		_SCREAMING_SNAKE_CASE    (	A    ):
       __SCREAMING_SNAKE_CASE    				=						42
       __SCREAMING_SNAKE_CASE    				=						42
       __SCREAMING_SNAKE_CASE    				=						42
       __SCREAMING_SNAKE_CASE    				=						42
  
  
  if is_transformers_available() and is_torch_available():
   from .pipeline_stable_diffusion_safe import StableDiffusionPipelineSafe
   from .safety_checker import SafeStableDiffusionSafetyChecker
  
  
  
  
  
  