code: 
  from ...configuration_utils import PretrainedConfig
  from ...utils import logging
  
  
  _snake_case			:       List[Any]      =						logging.get_logger(__name__)
  
  _snake_case			:       Dict      =						{
      "google/reformer-crime-and-punishment": (
          "https://huggingface.co/google/reformer-crime-and-punishment/resolve/main/config.json"
      ),
      "google/reformer-enwik8": "https://huggingface.co/google/reformer-enwik8/resolve/main/config.json",
  }
  
  
  
  
  
  class      UpperCamelCase_			(			__a		):
  
  
  
  
  
  
  
  						'''simple docstring'''
  
  
  
  						UpperCamelCase			:     Any							      =				'''reformer'''
  						UpperCamelCase			:     List[str]							      =				['''past_buckets_states''']
  						UpperCamelCase			:     Optional[int]							      =				{}
  
  
  
  
  
  						def __init__( self       :Dict		,						lowerCAmelCase__       :Any=64		,						lowerCAmelCase__       :str=["local", "lsh", "local", "lsh", "local", "lsh"]		,						lowerCAmelCase__       :Optional[Any]=1.0		,						lowerCAmelCase__       :List[str]=True		,						lowerCAmelCase__       :Optional[Any]=[64, 64]		,						lowerCAmelCase__       :Tuple=[64, 192]		,						lowerCAmelCase__       :Union[str, Any]=0		,						lowerCAmelCase__       :Optional[Any]=2		,						lowerCAmelCase__       :List[str]=512		,						lowerCAmelCase__       :Any=None		,						lowerCAmelCase__       :int="relu"		,						lowerCAmelCase__       :Tuple=0.05		,						lowerCAmelCase__       :int=256		,						lowerCAmelCase__       :Optional[Any]=0.02		,						lowerCAmelCase__       :Optional[int]=False		,						lowerCAmelCase__       :Optional[Any]=1E-1_2		,						lowerCAmelCase__       :int=1		,						lowerCAmelCase__       :Optional[Any]=0		,						lowerCAmelCase__       :Any=0.05		,						lowerCAmelCase__       :Optional[int]=64		,						lowerCAmelCase__       :List[Any]=64		,						lowerCAmelCase__       :Tuple=0.0		,						lowerCAmelCase__       :Tuple=1		,						lowerCAmelCase__       :List[str]=0		,						lowerCAmelCase__       :Dict=4096		,						lowerCAmelCase__       :Tuple=12		,						lowerCAmelCase__       :Tuple=None		,						lowerCAmelCase__       :Union[str, Any]=1		,						lowerCAmelCase__       :int=0		,						lowerCAmelCase__       :Optional[Any]=320		,						lowerCAmelCase__       :Optional[Any]=False		,						lowerCAmelCase__       :Optional[int]=True		,						lowerCAmelCase__       :str=None		,						**lowerCAmelCase__       :Any		,						)     ->Any:
  										lowercase						    =			hash_seed
  										lowercase						    =			vocab_size
  										lowercase						    =			attention_head_size
  										lowercase						    =			hidden_size
  										lowercase						    =			num_attention_heads
  										lowercase						    =			num_hashes
  										lowercase						    =			len(lowerCAmelCase__    )
  										lowercase						    =			tuple(lowerCAmelCase__    ) if isinstance(lowerCAmelCase__		,						lowerCAmelCase__    ) else num_buckets
  										lowercase						    =			lsh_attn_chunk_length
  										lowercase						    =			local_attn_chunk_length
  										lowercase						    =			lsh_num_chunks_after
  										lowercase						    =			lsh_num_chunks_before
  										lowercase						    =			local_num_chunks_after
  										lowercase						    =			local_num_chunks_before
  										lowercase						    =			hidden_act
  										lowercase						    =			feed_forward_size
  										lowercase						    =			hidden_dropout_prob
  										lowercase						    =			lsh_attention_probs_dropout_prob
  										lowercase						    =			local_attention_probs_dropout_prob
  										lowercase						    =			max_position_embeddings
  										lowercase						    =			initializer_range
  										lowercase						    =			layer_norm_eps
  										lowercase						    =			axial_pos_embds
  										lowercase						    =			tuple(lowerCAmelCase__    )
  										lowercase						    =			tuple(lowerCAmelCase__    )
  										lowercase						    =			axial_norm_std
  										lowercase						    =			chunk_size_lm_head
  										lowercase						    =			attn_layers
  										lowercase						    =			use_cache
  										lowercase						    =			classifier_dropout
  										super().__init__(
  										    pad_token_id=lowerCAmelCase__		,						eos_token_id=lowerCAmelCase__		,						is_decoder=lowerCAmelCase__		,						tie_word_embeddings=lowerCAmelCase__		,						**lowerCAmelCase__		,						)
  
style_context: 
  from functools import partial
  from typing import Any, Callable, Dict, List, Type, TypeVar, Union, overload
  
  import torch
  import torch.nn as nn
  import torch.types
  
  def    __snake_case       (  __magic_name__		,						__magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				if not inplace:
  								lowercase						    =			ma + ma
  				else:
  								ma += ma
  
  				return ma
  
  def    __snake_case       (  __magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				lowercase						    =			-1 * len(__magic_name__	)
  				lowercase						    =			list(range(len(tensor.shape[:zero_index]	)	)	)
  				return tensor.permute(first_inds + [zero_index + i for i in inds]	)
  
  def    __snake_case       (  __magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				return t.reshape(t.shape[:-no_dims] + (-1,)	)
  
  def    __snake_case       (  __magic_name__		,						__magic_name__		,						__magic_name__		,						__magic_name__ = 1e-4	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				lowercase						    =			mask.expand(*value.shape	)
  				return torch.sum(mask * value		,						dim=__magic_name__	) / (eps + torch.sum(__magic_name__		,						dim=__magic_name__	))
  
  def    __snake_case       (  __magic_name__		,						__magic_name__ = 2.3_1_2_5		,						__magic_name__ = 2_1.6_8_7_5		,						__magic_name__ = 64	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				lowercase						    =			torch.linspace(__magic_name__		,						__magic_name__		,						no_bins - 1		,						device=pts.device	)
  				lowercase						    =			torch.sqrt(torch.sum((pts.unsqueeze(-2	) - pts.unsqueeze(-3	)) ** 2		,						dim=-1	)	)
  				return torch.bucketize(__magic_name__		,						__magic_name__	)
  
  def    __snake_case       (  __magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				lowercase						    =			dicts[0]
  				lowercase						    =			{}
  				for k, v in first.items():
  								lowercase						    =			[d[k] for d in dicts]
  								if isinstance(__magic_name__		,						__magic_name__	):
  												lowercase						    =			dict_multimap(__magic_name__		,						__magic_name__	)
  								else:
  												lowercase						    =			fn(__magic_name__	)
  
  				return new_dict
  
  def    __snake_case       (  __magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				lowercase						    =			v_bins.view(((1,) * len(x.shape	)) + (len(__magic_name__	),)	)
  				lowercase						    =			x[..., None] - reshaped_bins
  				lowercase						    =			torch.argmin(torch.abs(__magic_name__	)		,						dim=-1	)
  				return nn.functional.one_hot(__magic_name__		,						num_classes=len(__magic_name__	)	).float()
  
  def    __snake_case       (  __magic_name__		,						__magic_name__		,						__magic_name__ = 0		,						__magic_name__ = 0	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				lowercase						    =			[]
  				for i, s in enumerate(data.shape[:no_batch_dims]	):
  								lowercase						    =			torch.arange(__magic_name__	)
  								lowercase						    =			r.view(*(*((1,) * i), -1, *((1,) * (len(inds.shape	) - i - 1)))	)
  								ranges.append(__magic_name__	)
  
  				lowercase						    =			[slice(__magic_name__	) for _ in range(len(data.shape	) - no_batch_dims	)]
  				lowercase						    =			inds
  				ranges.extend(__magic_name__	)
  				# Matt note: Editing this to get around the behaviour of using a list as an array index changing
  				# in recent Numpy versions
  				return data[tuple(__magic_name__	)]
  
  
  _snake_case			:       List[Any]      =						TypeVar("T")
  
  def    __snake_case       (  __magic_name__		,						__magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				lowercase						    =			{}
  				for k, v in dic.items():
  								if isinstance(__magic_name__		,						__magic_name__	):
  												lowercase						    =			dict_map(__magic_name__		,						__magic_name__		,						__magic_name__	)
  								else:
  												lowercase						    =			tree_map(__magic_name__		,						__magic_name__		,						__magic_name__	)
  
  				return new_dict
  
  @overload
  def    __snake_case       (  __magic_name__		,						__magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				...
  
  @overload
  def    __snake_case       (  __magic_name__		,						__magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				...
  
  @overload
  def    __snake_case       (  __magic_name__		,						__magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				...
  
  @overload
  def    __snake_case       (  __magic_name__		,						__magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				...
  
  def    __snake_case       (  __magic_name__		,						__magic_name__		,						__magic_name__	):
  
  
  
  
  
  
  
  				'''simple docstring'''
  
  
  				if isinstance(__magic_name__		,						__magic_name__	):
  								return dict_map(__magic_name__		,						__magic_name__		,						__magic_name__	)
  				elif isinstance(__magic_name__		,						__magic_name__	):
  								return [tree_map(__magic_name__		,						__magic_name__		,						__magic_name__	) for x in tree]
  				elif isinstance(__magic_name__		,						__magic_name__	):
  								return tuple(tree_map(__magic_name__		,						__magic_name__		,						__magic_name__	) for x in tree	)
  				elif isinstance(__magic_name__		,						__magic_name__	):
  								return fn(__magic_name__	)
  				else:
  								print(type(__magic_name__	)	)
  								raise ValueError("Not supported"	)
  
  
  
  
  _snake_case			:       Union[str, Any]      =						partial(tree_map, leaf_type=torch.Tensor)
  