code: 
  
  """simple docstring"""
  
  
  
  
  from ..utils import DummyObject, requires_backends
  
  
  
  
  
  class __snake_case		(					metaclass=_SCREAMING_SNAKE_CASE      ):
  
  
  
  
  
  
  
     """simple docstring"""
  
  
  
  
     lowerCAmelCase_				:   Optional[int]     	=			['torch', 'transformers', 'k_diffusion']
  
  
  
  
     def __init__(		self							:int				,  *UpperCamelCase__							:Tuple				,  **UpperCamelCase__							:Tuple       ):
            requires_backends(self				,  ["torch", "transformers", "k_diffusion"]       )
  
  
  
  
     @classmethod
     def SCREAMING_SNAKE_CASE_      (		cls							:Dict				,  *UpperCamelCase__							:Optional[Any]				,  **UpperCamelCase__							:Any       ):
            requires_backends(cls				,  ["torch", "transformers", "k_diffusion"]       )
  
  
  
  
     @classmethod
     def SCREAMING_SNAKE_CASE_      (		cls							:Optional[Any]				,  *UpperCamelCase__							:int				,  **UpperCamelCase__							:int       ):
            requires_backends(cls				,  ["torch", "transformers", "k_diffusion"]       )
  
style_context: 
  
  
  """simple docstring"""
  
  
  
  
  from __future__ import annotations
  
  
  
  def 						__a      (  a,		a					):
  
  
  
  
  
         """simple docstring"""
  
  
  
  
  
  
  
         assert len(a					) == len(a					)
  
         _a          =				len(a					)
         _a          =				list(range(a					)					)
         _a          =				[-1] * n  # who the donor has donated to
         _a          =				[-1] * n  # who the recipient has received from
         _a          =				[0] * n
  
         while unmatched_donors:
                _a          =				unmatched_donors[0]
                _a          =				donor_pref[donor]
                _a          =				donor_preference[num_donations[donor]]
                num_donations[donor] += 1
                _a          =				recipient_pref[recipient]
                _a          =				rec_record[recipient]
  
                if prev_donor != -1:
                       if rec_preference.index(a					) > rec_preference.index(a					):
                              _a          =				donor
                              _a          =				recipient
                              unmatched_donors.append(a					)
                              unmatched_donors.remove(a					)
                else:
                       _a          =				donor
                       _a          =				recipient
                       unmatched_donors.remove(a					)
         return donor_record
  