



"""simple docstring"""
import math
from typing import List, Optional, Tuple, Union

import numpy as np
import torch

from ..configuration_utils import ConfigMixin, register_to_config
from .scheduling_utils import SchedulerMixin, SchedulerOutput



class       SCREAMING_SNAKE_CASE__  (					UpperCAmelCase__      ,			UpperCAmelCase__ ):
   __lowerCAmelCase  :   Tuple						=						1

   @register_to_config
   def __init__(   self      ,     _SCREAMING_SNAKE_CASE = 1000      ,     _SCREAMING_SNAKE_CASE = None						)  ->      Dict:





    '''simple docstring'''




    self.set_timesteps(_SCREAMING_SNAKE_CASE						)

    # standard deviation of the initial noise distribution
    UpperCAmelCase	:					Optional[int]	=	1.0

    # For now we only support F-PNDM, i.e. the runge-kutta method
    # For more information on the algorithm please take a look at the paper: https://arxiv.org/pdf/2202.09778.pdf
    # mainly at formula (9), (12), (13) and the Algorithm 2.
    UpperCAmelCase	:					List[str]	=	4

    # running values
    UpperCAmelCase	:					str	=	[]

   def 	SCREAMING_SNAKE_CASE     (   self      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE = None						)  ->      Dict:





    '''simple docstring'''




    UpperCAmelCase	:					Union[str, Any]	=	num_inference_steps
    UpperCAmelCase	:					Tuple	=	torch.linspace(1      ,     0      ,     num_inference_steps + 1						)[:-1]
    UpperCAmelCase	:					str	=	torch.cat([steps, torch.tensor([0.0]						)]						)

    if self.config.trained_betas is not None:
     UpperCAmelCase	:					Optional[Any]	=	torch.tensor(self.config.trained_betas      ,     dtype=torch.floataa						)
    else:
     UpperCAmelCase	:					Optional[Any]	=	torch.sin(steps * math.pi / 2						) ** 2

    UpperCAmelCase	:					Dict	=	(1.0 - self.betas**2) ** 0.5

    UpperCAmelCase	:					List[Any]	=	(torch.atana(self.betas      ,     self.alphas						) / math.pi * 2)[:-1]
    UpperCAmelCase	:					List[Any]	=	timesteps.to(_SCREAMING_SNAKE_CASE						)

    UpperCAmelCase	:					Dict	=	[]

   def 	SCREAMING_SNAKE_CASE     (   self      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE = True      ,     )  ->      Union[SchedulerOutput, Tuple]:





    '''simple docstring'''




    if self.num_inference_steps is None:
     raise ValueError(
         """Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler"""						)

    UpperCAmelCase	:					Optional[int]	=	(self.timesteps == timestep).nonzero().item()
    UpperCAmelCase	:					Optional[Any]	=	timestep_index + 1

    UpperCAmelCase	:					Union[str, Any]	=	sample * self.betas[timestep_index] + model_output * self.alphas[timestep_index]
    self.ets.append(_SCREAMING_SNAKE_CASE						)

    if len(self.ets						) == 1:
     UpperCAmelCase	:					Union[str, Any]	=	self.ets[-1]
    elif len(self.ets						) == 2:
     UpperCAmelCase	:					Union[str, Any]	=	(3 * self.ets[-1] - self.ets[-2]) / 2
    elif len(self.ets						) == 3:
     UpperCAmelCase	:					str	=	(23 * self.ets[-1] - 16 * self.ets[-2] + 5 * self.ets[-3]) / 12
    else:
     UpperCAmelCase	:					List[str]	=	(1 / 24) * (55 * self.ets[-1] - 59 * self.ets[-2] + 37 * self.ets[-3] - 9 * self.ets[-4])

    UpperCAmelCase	:					Union[str, Any]	=	self._get_prev_sample(_SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						)

    if not return_dict:
     return (prev_sample,)

    return SchedulerOutput(prev_sample=_SCREAMING_SNAKE_CASE						)

   def 	SCREAMING_SNAKE_CASE     (   self      ,     _SCREAMING_SNAKE_CASE      ,     *_SCREAMING_SNAKE_CASE      ,     **_SCREAMING_SNAKE_CASE						)  ->      torch.FloatTensor:





    '''simple docstring'''




    return sample

   def 	SCREAMING_SNAKE_CASE     (   self      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						)  ->      List[str]:





    '''simple docstring'''




    UpperCAmelCase	:					Union[str, Any]	=	self.alphas[timestep_index]
    UpperCAmelCase	:					List[str]	=	self.betas[timestep_index]

    UpperCAmelCase	:					Tuple	=	self.alphas[prev_timestep_index]
    UpperCAmelCase	:					int	=	self.betas[prev_timestep_index]

    UpperCAmelCase	:					List[Any]	=	(sample - sigma * ets) / max(_SCREAMING_SNAKE_CASE      ,     1E-8						)
    UpperCAmelCase	:					Union[str, Any]	=	next_alpha * pred + ets * next_sigma

    return prev_sample




   def __len__(   self						)  ->      int:





    '''simple docstring'''




    return self.config.num_train_timesteps





"""simple docstring"""
from collections import OrderedDict
from typing import Any, Mapping, Optional

from ... import PreTrainedTokenizer
from ...configuration_utils import PretrainedConfig
from ...file_utils import TensorType, is_torch_available
from ...onnx import OnnxConfig, OnnxConfigWithPast, OnnxSeqaSeqConfigWithPast
from ...onnx.utils import compute_effective_axis_dimension
from ...utils import logging


A:   Tuple								=		logging.get_logger(__name__)

A:   List[Any]								=		{
    "facebook/blenderbot_small-90M": "https://huggingface.co/facebook/blenderbot_small-90M/resolve/main/config.json",
    # See all BlenderbotSmall models at https://huggingface.co/models?filter=blenderbot_small
}



class       SCREAMING_SNAKE_CASE__  (					UpperCAmelCase__ ):
   __lowerCAmelCase  :   int						=						'blenderbot-small'
   __lowerCAmelCase  :   Any						=						['past_key_values']
   __lowerCAmelCase  :   str						=						{'num_attention_heads': 'encoder_attention_heads', 'hidden_size': 'd_model'}

   def __init__(   self      ,     _SCREAMING_SNAKE_CASE=50265      ,     _SCREAMING_SNAKE_CASE=512      ,     _SCREAMING_SNAKE_CASE=8      ,     _SCREAMING_SNAKE_CASE=2048      ,     _SCREAMING_SNAKE_CASE=16      ,     _SCREAMING_SNAKE_CASE=8      ,     _SCREAMING_SNAKE_CASE=2048      ,     _SCREAMING_SNAKE_CASE=16      ,     _SCREAMING_SNAKE_CASE=0.0      ,     _SCREAMING_SNAKE_CASE=0.0      ,     _SCREAMING_SNAKE_CASE=True      ,     _SCREAMING_SNAKE_CASE=True      ,     _SCREAMING_SNAKE_CASE="gelu"      ,     _SCREAMING_SNAKE_CASE=512      ,     _SCREAMING_SNAKE_CASE=0.1      ,     _SCREAMING_SNAKE_CASE=0.0      ,     _SCREAMING_SNAKE_CASE=0.0      ,     _SCREAMING_SNAKE_CASE=0.02      ,     _SCREAMING_SNAKE_CASE=1      ,     _SCREAMING_SNAKE_CASE=False      ,     _SCREAMING_SNAKE_CASE=0      ,     _SCREAMING_SNAKE_CASE=1      ,     _SCREAMING_SNAKE_CASE=2      ,     _SCREAMING_SNAKE_CASE=2      ,     **_SCREAMING_SNAKE_CASE      ,     )  ->      str:





    '''simple docstring'''




    UpperCAmelCase	:					Any	=	vocab_size
    UpperCAmelCase	:					Any	=	max_position_embeddings
    UpperCAmelCase	:					str	=	d_model
    UpperCAmelCase	:					List[Any]	=	encoder_ffn_dim
    UpperCAmelCase	:					Union[str, Any]	=	encoder_layers
    UpperCAmelCase	:					List[str]	=	encoder_attention_heads
    UpperCAmelCase	:					Optional[Any]	=	decoder_ffn_dim
    UpperCAmelCase	:					List[Any]	=	decoder_layers
    UpperCAmelCase	:					Any	=	decoder_attention_heads
    UpperCAmelCase	:					Union[str, Any]	=	dropout
    UpperCAmelCase	:					Union[str, Any]	=	attention_dropout
    UpperCAmelCase	:					int	=	activation_dropout
    UpperCAmelCase	:					int	=	activation_function
    UpperCAmelCase	:					Optional[Any]	=	init_std
    UpperCAmelCase	:					List[str]	=	encoder_layerdrop
    UpperCAmelCase	:					List[str]	=	decoder_layerdrop
    UpperCAmelCase	:					List[str]	=	use_cache
    UpperCAmelCase	:					Union[str, Any]	=	encoder_layers
    UpperCAmelCase	:					Any	=	scale_embedding  # scale factor will be sqrt(d_model) if True

    super().__init__(
        pad_token_id=_SCREAMING_SNAKE_CASE      ,     bos_token_id=_SCREAMING_SNAKE_CASE      ,     eos_token_id=_SCREAMING_SNAKE_CASE      ,     is_encoder_decoder=_SCREAMING_SNAKE_CASE      ,     decoder_start_token_id=_SCREAMING_SNAKE_CASE      ,     forced_eos_token_id=_SCREAMING_SNAKE_CASE      ,     **_SCREAMING_SNAKE_CASE      ,     )



class       SCREAMING_SNAKE_CASE__  (					UpperCAmelCase__ ):

   @property
   def 	SCREAMING_SNAKE_CASE     (   self						)  ->      Mapping[str, Mapping[int, str]]:





    '''simple docstring'''




    if self.task in ["default", "seq2seq-lm"]:
     UpperCAmelCase	:					Dict	=	OrderedDict(
         [
             ("""input_ids""", {0: """batch""", 1: """encoder_sequence"""}),
             ("""attention_mask""", {0: """batch""", 1: """encoder_sequence"""}),
         ]						)

     if self.use_past:
      UpperCAmelCase	:					int	=	{0: """batch"""}
      UpperCAmelCase	:					List[Any]	=	{0: """batch""", 1: """past_decoder_sequence + sequence"""}
     else:
      UpperCAmelCase	:					Optional[Any]	=	{0: """batch""", 1: """decoder_sequence"""}
      UpperCAmelCase	:					Any	=	{0: """batch""", 1: """decoder_sequence"""}

     if self.use_past:
      self.fill_with_past_key_values_(_SCREAMING_SNAKE_CASE      ,     direction="""inputs"""						)
    elif self.task == "causal-lm":
     # TODO: figure this case out.
     UpperCAmelCase	:					int	=	OrderedDict(
         [
             ("""input_ids""", {0: """batch""", 1: """encoder_sequence"""}),
             ("""attention_mask""", {0: """batch""", 1: """encoder_sequence"""}),
         ]						)
     if self.use_past:
      UpperCAmelCase	,		UpperCAmelCase	:					Tuple	=	self.num_layers
      for i in range(_SCREAMING_SNAKE_CASE						):
       UpperCAmelCase	:					Optional[Any]	=	{0: """batch""", 2: """past_sequence + sequence"""}
       UpperCAmelCase	:					List[Any]	=	{0: """batch""", 2: """past_sequence + sequence"""}
    else:
     UpperCAmelCase	:					Dict	=	OrderedDict(
         [
             ("""input_ids""", {0: """batch""", 1: """encoder_sequence"""}),
             ("""attention_mask""", {0: """batch""", 1: """encoder_sequence"""}),
             ("""decoder_input_ids""", {0: """batch""", 1: """decoder_sequence"""}),
             ("""decoder_attention_mask""", {0: """batch""", 1: """decoder_sequence"""}),
         ]						)

    return common_inputs

   @property
   def 	SCREAMING_SNAKE_CASE     (   self						)  ->      Mapping[str, Mapping[int, str]]:





    '''simple docstring'''




    if self.task in ["default", "seq2seq-lm"]:
     UpperCAmelCase	:					Union[str, Any]	=	super().outputs
    else:
     UpperCAmelCase	:					int	=	super(_SCREAMING_SNAKE_CASE      ,     self						).outputs
     if self.use_past:
      UpperCAmelCase	,		UpperCAmelCase	:					Any	=	self.num_layers
      for i in range(_SCREAMING_SNAKE_CASE						):
       UpperCAmelCase	:					List[str]	=	{0: """batch""", 2: """past_sequence + sequence"""}
       UpperCAmelCase	:					List[str]	=	{0: """batch""", 2: """past_sequence + sequence"""}
    return common_outputs

   def 	SCREAMING_SNAKE_CASE     (   self      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE = -1      ,     _SCREAMING_SNAKE_CASE = -1      ,     _SCREAMING_SNAKE_CASE = False      ,     _SCREAMING_SNAKE_CASE = None      ,     )  ->      Mapping[str, Any]:





    '''simple docstring'''




    UpperCAmelCase	:					Dict	=	self._generate_dummy_inputs_for_sequence_classification_and_question_answering(
        _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						)

    # Generate decoder inputs
    UpperCAmelCase	:					Optional[Any]	=	seq_length if not self.use_past else 1
    UpperCAmelCase	:					Dict	=	self._generate_dummy_inputs_for_sequence_classification_and_question_answering(
        _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						)
    UpperCAmelCase	:					Any	=	{F"decoder_{name}": tensor for name, tensor in decoder_inputs.items()}
    UpperCAmelCase	:					Union[str, Any]	=	dict(**_SCREAMING_SNAKE_CASE      ,     **_SCREAMING_SNAKE_CASE						)

    if self.use_past:
     if not is_torch_available():
      raise ValueError("""Cannot generate dummy past_keys inputs without PyTorch installed."""						)
     else:
      import torch
     UpperCAmelCase	,		UpperCAmelCase	:					int	=	common_inputs["""input_ids"""].shape
     UpperCAmelCase	:					Any	=	common_inputs["""decoder_input_ids"""].shape[1]
     UpperCAmelCase	,		UpperCAmelCase	:					str	=	self.num_attention_heads
     UpperCAmelCase	:					Union[str, Any]	=	(
         batch,
         num_encoder_attention_heads,
         encoder_seq_length,
         self._config.hidden_size // num_encoder_attention_heads,
     )
     UpperCAmelCase	:					Union[str, Any]	=	decoder_seq_length + 3
     UpperCAmelCase	:					Union[str, Any]	=	(
         batch,
         num_decoder_attention_heads,
         decoder_past_length,
         self._config.hidden_size // num_decoder_attention_heads,
     )

     UpperCAmelCase	:					Optional[Any]	=	torch.cat(
         [common_inputs["""decoder_attention_mask"""], torch.ones(_SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						)]      ,     dim=1						)

     UpperCAmelCase	:					List[str]	=	[]
     # If the number of encoder and decoder layers are present in the model configuration, both are considered
     UpperCAmelCase	,		UpperCAmelCase	:					List[Any]	=	self.num_layers
     UpperCAmelCase	:					Optional[Any]	=	min(_SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						)
     UpperCAmelCase	:					Optional[Any]	=	max(_SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						) - min_num_layers
     UpperCAmelCase	:					Optional[int]	=	"""encoder""" if num_encoder_layers > num_decoder_layers else """decoder"""

     for _ in range(_SCREAMING_SNAKE_CASE						):
      common_inputs["past_key_values"].append(
          (
              torch.zeros(_SCREAMING_SNAKE_CASE						),
              torch.zeros(_SCREAMING_SNAKE_CASE						),
              torch.zeros(_SCREAMING_SNAKE_CASE						),
              torch.zeros(_SCREAMING_SNAKE_CASE						),
          )						)
     # TODO: test this.
     UpperCAmelCase	:					Dict	=	encoder_shape if remaining_side_name == """encoder""" else decoder_shape
     for _ in range(_SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						):
      common_inputs["past_key_values"].append((torch.zeros(_SCREAMING_SNAKE_CASE						), torch.zeros(_SCREAMING_SNAKE_CASE						))						)
    return common_inputs

   def 	SCREAMING_SNAKE_CASE     (   self      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE = -1      ,     _SCREAMING_SNAKE_CASE = -1      ,     _SCREAMING_SNAKE_CASE = False      ,     _SCREAMING_SNAKE_CASE = None      ,     )  ->      Mapping[str, Any]:





    '''simple docstring'''




    UpperCAmelCase	:					Tuple	=	self._generate_dummy_inputs_for_sequence_classification_and_question_answering(
        _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						)

    if self.use_past:
     if not is_torch_available():
      raise ValueError("""Cannot generate dummy past_keys inputs without PyTorch installed."""						)
     else:
      import torch
     UpperCAmelCase	,		UpperCAmelCase	:					Optional[Any]	=	common_inputs["""input_ids"""].shape
     # Not using the same length for past_key_values
     UpperCAmelCase	:					Union[str, Any]	=	seqlen + 2
     UpperCAmelCase	,		UpperCAmelCase	:					Optional[int]	=	self.num_layers
     UpperCAmelCase	,		UpperCAmelCase	:					Dict	=	self.num_attention_heads
     UpperCAmelCase	:					Any	=	(
         batch,
         num_encoder_attention_heads,
         past_key_values_length,
         self._config.hidden_size // num_encoder_attention_heads,
     )

     UpperCAmelCase	:					List[Any]	=	common_inputs["""attention_mask"""].dtype
     UpperCAmelCase	:					Any	=	torch.cat(
         [common_inputs["""attention_mask"""], torch.ones(_SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     dtype=_SCREAMING_SNAKE_CASE						)]      ,     dim=1						)
     UpperCAmelCase	:					List[str]	=	[
         (torch.zeros(_SCREAMING_SNAKE_CASE						), torch.zeros(_SCREAMING_SNAKE_CASE						)) for _ in range(_SCREAMING_SNAKE_CASE						)
     ]
    return common_inputs

   def 	SCREAMING_SNAKE_CASE     (   self      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE = -1      ,     _SCREAMING_SNAKE_CASE = -1      ,     _SCREAMING_SNAKE_CASE = False      ,     _SCREAMING_SNAKE_CASE = None      ,     )  ->      Mapping[str, Any]:





    '''simple docstring'''




    UpperCAmelCase	:					str	=	compute_effective_axis_dimension(
        _SCREAMING_SNAKE_CASE      ,     fixed_dimension=OnnxConfig.default_fixed_batch      ,     num_token_to_add=0						)

    # If dynamic axis (-1) we forward with a fixed dimension of 8 tokens to avoid optimizations made by ONNX
    UpperCAmelCase	:					List[str]	=	tokenizer.num_special_tokens_to_add(_SCREAMING_SNAKE_CASE						)
    UpperCAmelCase	:					int	=	compute_effective_axis_dimension(
        _SCREAMING_SNAKE_CASE      ,     fixed_dimension=OnnxConfig.default_fixed_sequence      ,     num_token_to_add=_SCREAMING_SNAKE_CASE						)

    # Generate dummy inputs according to compute batch and sequence
    UpperCAmelCase	:					Dict	=	[""" """.join([tokenizer.unk_token]						) * seq_length] * batch_size
    UpperCAmelCase	:					Optional[int]	=	dict(tokenizer(_SCREAMING_SNAKE_CASE      ,     return_tensors=_SCREAMING_SNAKE_CASE						)						)
    return common_inputs

   def 	SCREAMING_SNAKE_CASE     (   self      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE = -1      ,     _SCREAMING_SNAKE_CASE = -1      ,     _SCREAMING_SNAKE_CASE = False      ,     _SCREAMING_SNAKE_CASE = None      ,     )  ->      Mapping[str, Any]:





    '''simple docstring'''




    if self.task in ["default", "seq2seq-lm"]:
     UpperCAmelCase	:					Optional[int]	=	self._generate_dummy_inputs_for_default_and_seqaseq_lm(
         _SCREAMING_SNAKE_CASE      ,     batch_size=_SCREAMING_SNAKE_CASE      ,     seq_length=_SCREAMING_SNAKE_CASE      ,     is_pair=_SCREAMING_SNAKE_CASE      ,     framework=_SCREAMING_SNAKE_CASE						)

    elif self.task == "causal-lm":
     UpperCAmelCase	:					Optional[int]	=	self._generate_dummy_inputs_for_causal_lm(
         _SCREAMING_SNAKE_CASE      ,     batch_size=_SCREAMING_SNAKE_CASE      ,     seq_length=_SCREAMING_SNAKE_CASE      ,     is_pair=_SCREAMING_SNAKE_CASE      ,     framework=_SCREAMING_SNAKE_CASE						)
    else:
     UpperCAmelCase	:					Tuple	=	self._generate_dummy_inputs_for_sequence_classification_and_question_answering(
         _SCREAMING_SNAKE_CASE      ,     batch_size=_SCREAMING_SNAKE_CASE      ,     seq_length=_SCREAMING_SNAKE_CASE      ,     is_pair=_SCREAMING_SNAKE_CASE      ,     framework=_SCREAMING_SNAKE_CASE						)

    return common_inputs




   def 	SCREAMING_SNAKE_CASE     (   self      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						)  ->      List[Any]:





    '''simple docstring'''




    if self.task in ["default", "seq2seq-lm"]:
     UpperCAmelCase	:					List[Any]	=	super()._flatten_past_key_values_(_SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						)
    else:
     UpperCAmelCase	:					Dict	=	super(_SCREAMING_SNAKE_CASE      ,     self						)._flatten_past_key_values_(
         _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE      ,     _SCREAMING_SNAKE_CASE						)
