





# DISCLAIMER: This file is strongly influenced by https://github.com/yang-song/score_sde_pytorch

import math
from typing import Union

import torch

from ..configuration_utils import ConfigMixin, register_to_config
from ..utils import randn_tensor
from .scheduling_utils import SchedulerMixin

class 	UpperCamelCase__				(   lowerCAmelCase_							,   lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Optional[int]				=    1






     @register_to_config
     def __init__(							self		:					List[str]		,lowerCamelCase__		:					Any=2000		,lowerCamelCase__		:					str=0.1		,lowerCamelCase__		:					Optional[Any]=20		,lowerCamelCase__		:					Optional[Any]=1e-3 )  ->	List[str]:




           '''simple docstring'''


           SCREAMING_SNAKE_CASE	=		None
           SCREAMING_SNAKE_CASE	=		None
           SCREAMING_SNAKE_CASE	=		None






     def        SCREAMING_SNAKE_CASE__						(							self		:					Union[str, Any]		,lowerCamelCase__		:					Optional[Any]		,lowerCamelCase__		:					Union[str, torch.device] = None )  ->	Union[str, Any]:




           '''simple docstring'''


           SCREAMING_SNAKE_CASE	=		torch.linspace(1		,self.config.sampling_eps		,lowerCamelCase__		,device=lowerCamelCase__ )






     def        SCREAMING_SNAKE_CASE__						(							self		:					str		,lowerCamelCase__		:					Optional[Any]		,lowerCamelCase__		:					Tuple		,lowerCamelCase__		:					Tuple		,lowerCamelCase__		:					str=None )  ->	List[Any]:




           '''simple docstring'''


           if self.timesteps is None:
                 raise ValueError(
                     """`self.timesteps` is not set, you need to run 'set_timesteps' after creating the scheduler""" )

           # TODO(Patrick) better comments + non-PyTorch
           # postprocess model score
           SCREAMING_SNAKE_CASE	=		(
               -0.25 * t**2 * (self.config.beta_max - self.config.beta_min) - 0.5 * t * self.config.beta_min
           )
           SCREAMING_SNAKE_CASE	=		torch.sqrt(1.0 - torch.exp(2.0 * log_mean_coeff ) )
           SCREAMING_SNAKE_CASE	=		std.flatten()
           while len(std.shape ) < len(score.shape ):
                 SCREAMING_SNAKE_CASE	=		std.unsqueeze(-1 )
           SCREAMING_SNAKE_CASE	=		-score / std

           # compute
           SCREAMING_SNAKE_CASE	=		-1.0 / len(self.timesteps )

           SCREAMING_SNAKE_CASE	=		self.config.beta_min + t * (self.config.beta_max - self.config.beta_min)
           SCREAMING_SNAKE_CASE	=		beta_t.flatten()
           while len(beta_t.shape ) < len(x.shape ):
                 SCREAMING_SNAKE_CASE	=		beta_t.unsqueeze(-1 )
           SCREAMING_SNAKE_CASE	=		-0.5 * beta_t * x

           SCREAMING_SNAKE_CASE	=		torch.sqrt(lowerCamelCase__ )
           SCREAMING_SNAKE_CASE	=		drift - diffusion**2 * score
           SCREAMING_SNAKE_CASE	=		x + drift * dt

           # add noise
           SCREAMING_SNAKE_CASE	=		randn_tensor(x.shape		,layout=x.layout		,generator=lowerCamelCase__		,device=x.device		,dtype=x.dtype )
           SCREAMING_SNAKE_CASE	=		x_mean + diffusion * math.sqrt(-dt ) * noise

           return x, x_mean






     def __len__(							self		:					Tuple )  ->	Optional[Any]:




           '''simple docstring'''


           return self.config.num_train_timesteps









from ..utils import DummyObject, requires_backends

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Dict				=    ["sentencepiece"]






     def __init__(							self		:					int		,*lowerCamelCase__		:					Any		,**lowerCamelCase__		:					Any )  ->	str:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Union[str, Any]				=    ["sentencepiece"]






     def __init__(							self		:					Any		,*lowerCamelCase__		:					str		,**lowerCamelCase__		:					List[Any] )  ->	str:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			str				=    ["sentencepiece"]






     def __init__(							self		:					Union[str, Any]		,*lowerCamelCase__		:					Union[str, Any]		,**lowerCamelCase__		:					Optional[int] )  ->	Optional[int]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Dict				=    ["sentencepiece"]






     def __init__(							self		:					Tuple		,*lowerCamelCase__		:					Dict		,**lowerCamelCase__		:					Any )  ->	Union[str, Any]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Dict				=    ["sentencepiece"]






     def __init__(							self		:					Optional[int]		,*lowerCamelCase__		:					List[Any]		,**lowerCamelCase__		:					Optional[int] )  ->	str:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			List[str]				=    ["sentencepiece"]






     def __init__(							self		:					Union[str, Any]		,*lowerCamelCase__		:					Union[str, Any]		,**lowerCamelCase__		:					Optional[Any] )  ->	Tuple:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			List[str]				=    ["sentencepiece"]






     def __init__(							self		:					int		,*lowerCamelCase__		:					List[str]		,**lowerCamelCase__		:					str )  ->	Optional[int]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			int				=    ["sentencepiece"]






     def __init__(							self		:					Union[str, Any]		,*lowerCamelCase__		:					List[Any]		,**lowerCamelCase__		:					Optional[Any] )  ->	int:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			List[Any]				=    ["sentencepiece"]






     def __init__(							self		:					List[str]		,*lowerCamelCase__		:					List[str]		,**lowerCamelCase__		:					int )  ->	Tuple:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Union[str, Any]				=    ["sentencepiece"]






     def __init__(							self		:					str		,*lowerCamelCase__		:					Union[str, Any]		,**lowerCamelCase__		:					List[str] )  ->	Optional[int]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Any				=    ["sentencepiece"]






     def __init__(							self		:					int		,*lowerCamelCase__		:					Dict		,**lowerCamelCase__		:					List[Any] )  ->	List[str]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Any				=    ["sentencepiece"]






     def __init__(							self		:					Dict		,*lowerCamelCase__		:					Any		,**lowerCamelCase__		:					Optional[int] )  ->	Union[str, Any]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Tuple				=    ["sentencepiece"]






     def __init__(							self		:					Dict		,*lowerCamelCase__		:					int		,**lowerCamelCase__		:					Optional[int] )  ->	Optional[Any]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			List[Any]				=    ["sentencepiece"]






     def __init__(							self		:					Optional[Any]		,*lowerCamelCase__		:					Tuple		,**lowerCamelCase__		:					int )  ->	Any:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Tuple				=    ["sentencepiece"]






     def __init__(							self		:					Optional[Any]		,*lowerCamelCase__		:					Tuple		,**lowerCamelCase__		:					Dict )  ->	Union[str, Any]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			List[Any]				=    ["sentencepiece"]






     def __init__(							self		:					int		,*lowerCamelCase__		:					str		,**lowerCamelCase__		:					Optional[Any] )  ->	Dict:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			int				=    ["sentencepiece"]






     def __init__(							self		:					Union[str, Any]		,*lowerCamelCase__		:					Any		,**lowerCamelCase__		:					str )  ->	List[Any]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Dict				=    ["sentencepiece"]






     def __init__(							self		:					int		,*lowerCamelCase__		:					Any		,**lowerCamelCase__		:					Dict )  ->	List[Any]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			int				=    ["sentencepiece"]






     def __init__(							self		:					List[Any]		,*lowerCamelCase__		:					str		,**lowerCamelCase__		:					Any )  ->	int:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Union[str, Any]				=    ["sentencepiece"]






     def __init__(							self		:					Dict		,*lowerCamelCase__		:					Optional[int]		,**lowerCamelCase__		:					str )  ->	Tuple:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			str				=    ["sentencepiece"]






     def __init__(							self		:					Union[str, Any]		,*lowerCamelCase__		:					int		,**lowerCamelCase__		:					Any )  ->	List[str]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Any				=    ["sentencepiece"]






     def __init__(							self		:					Dict		,*lowerCamelCase__		:					Tuple		,**lowerCamelCase__		:					str )  ->	int:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			List[str]				=    ["sentencepiece"]






     def __init__(							self		:					Optional[int]		,*lowerCamelCase__		:					Optional[int]		,**lowerCamelCase__		:					Union[str, Any] )  ->	Tuple:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			str				=    ["sentencepiece"]






     def __init__(							self		:					Optional[Any]		,*lowerCamelCase__		:					Optional[int]		,**lowerCamelCase__		:					List[Any] )  ->	Any:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Optional[Any]				=    ["sentencepiece"]






     def __init__(							self		:					List[str]		,*lowerCamelCase__		:					Tuple		,**lowerCamelCase__		:					str )  ->	Union[str, Any]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Optional[int]				=    ["sentencepiece"]






     def __init__(							self		:					Optional[Any]		,*lowerCamelCase__		:					Tuple		,**lowerCamelCase__		:					str )  ->	Dict:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Tuple				=    ["sentencepiece"]






     def __init__(							self		:					Any		,*lowerCamelCase__		:					Optional[int]		,**lowerCamelCase__		:					Any )  ->	Optional[int]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Dict				=    ["sentencepiece"]






     def __init__(							self		:					Union[str, Any]		,*lowerCamelCase__		:					List[str]		,**lowerCamelCase__		:					List[Any] )  ->	str:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			str				=    ["sentencepiece"]






     def __init__(							self		:					int		,*lowerCamelCase__		:					str		,**lowerCamelCase__		:					str )  ->	Dict:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Union[str, Any]				=    ["sentencepiece"]






     def __init__(							self		:					int		,*lowerCamelCase__		:					List[Any]		,**lowerCamelCase__		:					Optional[int] )  ->	List[str]:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )

class 	UpperCamelCase__				(   metaclass=lowerCAmelCase_     ):



     '''simple docstring'''

     __snake_case					:			Union[str, Any]				=    ["sentencepiece"]






     def __init__(							self		:					List[Any]		,*lowerCamelCase__		:					Tuple		,**lowerCamelCase__		:					Dict )  ->	Dict:




           '''simple docstring'''


           requires_backends(self		,["""sentencepiece"""] )


