"""simple docstring"""




import unittest

from transformers import LiltConfig, is_torch_available
from transformers.testing_utils import require_torch, slow, torch_device

from ...generation.test_utils import GenerationTesterMixin
from ...test_configuration_common import ConfigTester
from ...test_modeling_common import ModelTesterMixin, ids_tensor
from ...test_pipeline_mixin import PipelineTesterMixin


if is_torch_available():
				import torch

				from transformers import (
				    LiltForQuestionAnswering,
				    LiltForSequenceClassification,
				    LiltForTokenClassification,
				    LiltModel,
				)
				from transformers.models.lilt.modeling_lilt import LILT_PRETRAINED_MODEL_ARCHIVE_LIST
class 			UpperCamelCase__:





						def __init__(				self						,__UpperCAmelCase						,__UpperCAmelCase=13						,__UpperCAmelCase=7						,__UpperCAmelCase=True						,__UpperCAmelCase=True						,__UpperCAmelCase=True						,__UpperCAmelCase=True						,__UpperCAmelCase=99						,__UpperCAmelCase=24						,__UpperCAmelCase=2						,__UpperCAmelCase=6						,__UpperCAmelCase=37						,__UpperCAmelCase="gelu"						,__UpperCAmelCase=0.1						,__UpperCAmelCase=0.1						,__UpperCAmelCase=5_12						,__UpperCAmelCase=16						,__UpperCAmelCase=2						,__UpperCAmelCase=0.0_2						,__UpperCAmelCase=3						,__UpperCAmelCase=None						,__UpperCAmelCase=10_00						,)    -> List[Any]:
													A__		   =							parent
													A__		   =							batch_size
													A__		   =							seq_length
													A__		   =							is_training
													A__		   =							use_input_mask
													A__		   =							use_token_type_ids
													A__		   =							use_labels
													A__		   =							vocab_size
													A__		   =							hidden_size
													A__		   =							num_hidden_layers
													A__		   =							num_attention_heads
													A__		   =							intermediate_size
													A__		   =							hidden_act
													A__		   =							hidden_dropout_prob
													A__		   =							attention_probs_dropout_prob
													A__		   =							max_position_embeddings
													A__		   =							type_vocab_size
													A__		   =							type_sequence_label_size
													A__		   =							initializer_range
													A__		   =							num_labels
													A__		   =							scope
													A__		   =							range_bbox





						def  snake_case__		(				self   )    -> Optional[Any]:
													A__		   =							ids_tensor([self.batch_size, self.seq_length]						,self.vocab_size   )

													A__		   =							ids_tensor([self.batch_size, self.seq_length, 4]						,self.range_bbox   )
													# Ensure that bbox is legal
													for i in range(bbox.shape[0]   ):
																				for j in range(bbox.shape[1]   ):
																											if bbox[i, j, 3] < bbox[i, j, 1]:
																																		A__		   =							bbox[i, j, 3]
																																		A__		   =							bbox[i, j, 1]
																																		A__		   =							t
																											if bbox[i, j, 2] < bbox[i, j, 0]:
																																		A__		   =							bbox[i, j, 2]
																																		A__		   =							bbox[i, j, 0]
																																		A__		   =							t

													A__		   =							None
													if self.use_input_mask:
																				A__		   =							ids_tensor([self.batch_size, self.seq_length]						,vocab_size=2   )

													A__		   =							None
													if self.use_token_type_ids:
																				A__		   =							ids_tensor([self.batch_size, self.seq_length]						,self.type_vocab_size   )

													A__		   =							None
													A__		   =							None
													if self.use_labels:
																				A__		   =							ids_tensor([self.batch_size]						,self.type_sequence_label_size   )
																				A__		   =							ids_tensor([self.batch_size, self.seq_length]						,self.num_labels   )

													A__		   =							self.get_config()

													return config, input_ids, bbox, token_type_ids, input_mask, sequence_labels, token_labels





						def  snake_case__		(				self   )    -> List[str]:
													return LiltConfig(
													    vocab_size=self.vocab_size						,hidden_size=self.hidden_size						,num_hidden_layers=self.num_hidden_layers						,num_attention_heads=self.num_attention_heads						,intermediate_size=self.intermediate_size						,hidden_act=self.hidden_act						,hidden_dropout_prob=self.hidden_dropout_prob						,attention_probs_dropout_prob=self.attention_probs_dropout_prob						,max_position_embeddings=self.max_position_embeddings						,type_vocab_size=self.type_vocab_size						,initializer_range=self.initializer_range						,)





						def  snake_case__		(				self						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,)    -> Union[str, Any]:
													A__		   =							LiltModel(config=__UpperCAmelCase   )
													model.to(__UpperCAmelCase   )
													model.eval()
													A__		   =							model(__UpperCAmelCase						,bbox=__UpperCAmelCase						,attention_mask=__UpperCAmelCase						,token_type_ids=__UpperCAmelCase   )
													A__		   =							model(__UpperCAmelCase						,bbox=__UpperCAmelCase						,token_type_ids=__UpperCAmelCase   )
													A__		   =							model(__UpperCAmelCase						,bbox=__UpperCAmelCase   )

													self.parent.assertEqual(result.last_hidden_state.shape						,(self.batch_size, self.seq_length, self.hidden_size)   )
													self.parent.assertEqual(result.pooler_output.shape						,(self.batch_size, self.hidden_size)   )





						def  snake_case__		(				self						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,)    -> Dict:
													A__		   =							self.num_labels
													A__		   =							LiltForTokenClassification(config=__UpperCAmelCase   )
													model.to(__UpperCAmelCase   )
													model.eval()
													A__		   =							model(
													    __UpperCAmelCase						,bbox=__UpperCAmelCase						,attention_mask=__UpperCAmelCase						,token_type_ids=__UpperCAmelCase						,labels=__UpperCAmelCase   )
													self.parent.assertEqual(result.logits.shape						,(self.batch_size, self.seq_length, self.num_labels)   )





						def  snake_case__		(				self						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,)    -> List[Any]:
													A__		   =							LiltForQuestionAnswering(config=__UpperCAmelCase   )
													model.to(__UpperCAmelCase   )
													model.eval()
													A__		   =							model(
													    __UpperCAmelCase						,bbox=__UpperCAmelCase						,attention_mask=__UpperCAmelCase						,token_type_ids=__UpperCAmelCase						,start_positions=__UpperCAmelCase						,end_positions=__UpperCAmelCase						,)
													self.parent.assertEqual(result.start_logits.shape						,(self.batch_size, self.seq_length)   )
													self.parent.assertEqual(result.end_logits.shape						,(self.batch_size, self.seq_length)   )





						def  snake_case__		(				self   )    -> Any:
													A__		   =							self.prepare_config_and_inputs()
													(
													    (
													    A__
													)   ,     (
													    A__
													)   ,     (
													    A__
													)   ,     (
													    A__
													)   ,     (
													    A__
													)   ,     (
													    A__
													)   ,     (
													    A__
													)   ,     
													)		   =							config_and_inputs
													A__		   =							{
													    'input_ids': input_ids,
													    'bbox': bbox,
													    'token_type_ids': token_type_ids,
													    'attention_mask': input_mask,
													}
													return config, inputs_dict






@require_torch
class 			UpperCamelCase__(	__A						,  __A						,  __A						,  unittest.TestCase       ):
						lowerCAmelCase__     :  Optional[Any]  							=						(
						    (
						        LiltModel,
						        LiltForSequenceClassification,
						        LiltForTokenClassification,
						        LiltForQuestionAnswering,
						    )
						    if is_torch_available()
						    else ()
						)
						lowerCAmelCase__     :  int  							=						(
						    {
						        'feature-extraction': LiltModel,
						        'question-answering': LiltForQuestionAnswering,
						        'text-classification': LiltForSequenceClassification,
						        'token-classification': LiltForTokenClassification,
						        'zero-shot': LiltForSequenceClassification,
						    }
						    if is_torch_available()
						    else {}
						)
						lowerCAmelCase__     :  int  							=						False
						lowerCAmelCase__     :  Any  							=						False





						def  snake_case__		(				self						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase   )    -> Any:
													return True





						def  snake_case__		(				self   )    -> Tuple:
													A__		   =							LiltModelTester(self   )
													A__		   =							ConfigTester(self						,config_class=__UpperCAmelCase						,hidden_size=37   )





						def  snake_case__		(				self   )    -> List[str]:
													self.config_tester.run_common_tests()





						def  snake_case__		(				self   )    -> List[str]:
													A__		   =							self.model_tester.prepare_config_and_inputs()
													self.model_tester.create_and_check_model(*__UpperCAmelCase   )





						def  snake_case__		(				self   )    -> Any:
													A__		   =							self.model_tester.prepare_config_and_inputs()
													for type in ["absolute", "relative_key", "relative_key_query"]:
																				A__		   =							type
																				self.model_tester.create_and_check_model(*__UpperCAmelCase   )





						def  snake_case__		(				self   )    -> List[Any]:
													A__		   =							self.model_tester.prepare_config_and_inputs()
													self.model_tester.create_and_check_for_token_classification(*__UpperCAmelCase   )





						def  snake_case__		(				self   )    -> Dict:
													A__		   =							self.model_tester.prepare_config_and_inputs()
													self.model_tester.create_and_check_for_question_answering(*__UpperCAmelCase   )





						@slow
						def  snake_case__		(				self   )    -> str:
													for model_name in LILT_PRETRAINED_MODEL_ARCHIVE_LIST[:1]:
																				A__		   =							LiltModel.from_pretrained(__UpperCAmelCase   )
																				self.assertIsNotNone(__UpperCAmelCase   )






@require_torch
@slow
class 			UpperCamelCase__(	unittest.TestCase       ):





						def  snake_case__		(				self   )    -> Dict:
													A__		   =							LiltModel.from_pretrained('SCUT-DLVCLab/lilt-roberta-en-base'   ).to(__UpperCAmelCase   )

													A__		   =							torch.tensor([[1, 2]]						,device=__UpperCAmelCase   )
													A__		   =							torch.tensor([[[1, 2, 3, 4], [5, 6, 7, 8]]]						,device=__UpperCAmelCase   )

													# forward pass
													with torch.no_grad():
																				A__		   =							model(input_ids=__UpperCAmelCase						,bbox=__UpperCAmelCase   )

													A__		   =							torch.Size([1, 2, 7_68]   )
													A__		   =							torch.tensor(
													    [[-0.0_6_5_3, 0.0_9_5_0, -0.0_0_6_1], [-0.0_5_4_5, 0.0_9_2_6, -0.0_3_2_4]]						,device=__UpperCAmelCase						,)

													self.assertTrue(outputs.last_hidden_state.shape						,__UpperCAmelCase   )
													self.assertTrue(torch.allclose(outputs.last_hidden_state[0, :, :3]						,__UpperCAmelCase						,atol=1e-3   )   )






"""simple docstring"""




from dataclasses import dataclass
from typing import Optional

import numpy as np
import torch
import torch.nn as nn

from ..utils import BaseOutput, is_torch_version, randn_tensor
from .attention_processor import SpatialNorm
from .unet_ad_blocks import UNetMidBlockaD, get_down_block, get_up_block
@dataclass
class 			UpperCamelCase__(	__A       ):
						lowerCAmelCase__     :  torch.FloatTensor






class 			UpperCamelCase__(	nn.Module       ):





						def __init__(				self						,__UpperCAmelCase=3						,__UpperCAmelCase=3						,__UpperCAmelCase=("DownEncoderBlock2D",)						,__UpperCAmelCase=(64,)						,__UpperCAmelCase=2						,__UpperCAmelCase=32						,__UpperCAmelCase="silu"						,__UpperCAmelCase=True						,)    -> Union[str, Any]:
													super().__init__()
													A__		   =							layers_per_block

													A__		   =							torch.nn.Convad(
													    __UpperCAmelCase						,block_out_channels[0]						,kernel_size=3						,stride=1						,padding=1						,)

													A__		   =							None
													A__		   =							nn.ModuleList([]   )

													# down
													A__		   =							block_out_channels[0]
													for i, down_block_type in enumerate(__UpperCAmelCase   ):
																				A__		   =							output_channel
																				A__		   =							block_out_channels[i]
																				A__		   =							i == len(__UpperCAmelCase   ) - 1

																				A__		   =							get_down_block(
																				    __UpperCAmelCase						,num_layers=self.layers_per_block						,in_channels=__UpperCAmelCase						,out_channels=__UpperCAmelCase						,add_downsample=not is_final_block						,resnet_eps=1e-6						,downsample_padding=0						,resnet_act_fn=__UpperCAmelCase						,resnet_groups=__UpperCAmelCase						,attention_head_dim=__UpperCAmelCase						,temb_channels=__UpperCAmelCase						,)
																				self.down_blocks.append(__UpperCAmelCase   )

													# mid
													A__		   =							UNetMidBlockaD(
													    in_channels=block_out_channels[-1]						,resnet_eps=1e-6						,resnet_act_fn=__UpperCAmelCase						,output_scale_factor=1						,resnet_time_scale_shift='default'						,attention_head_dim=block_out_channels[-1]						,resnet_groups=__UpperCAmelCase						,temb_channels=__UpperCAmelCase						,)

													# out
													A__		   =							nn.GroupNorm(num_channels=block_out_channels[-1]						,num_groups=__UpperCAmelCase						,eps=1e-6   )
													A__		   =							nn.SiLU()

													A__		   =							2 * out_channels if double_z else out_channels
													A__		   =							nn.Convad(block_out_channels[-1]						,__UpperCAmelCase						,3						,padding=1   )

													A__		   =							False





						def  snake_case__		(				self						,__UpperCAmelCase   )    -> Optional[int]:
													A__		   =							x
													A__		   =							self.conv_in(__UpperCAmelCase   )

													if self.training and self.gradient_checkpointing:

																				def create_custom_forward(__UpperCAmelCase   ):
																											def custom_forward(*__UpperCAmelCase   ):
																																		return module(*__UpperCAmelCase   )

																											return custom_forward

																				# down
																				if is_torch_version('>='						,'1.11.0'   ):
																											for down_block in self.down_blocks:
																																		A__		   =							torch.utils.checkpoint.checkpoint(
																																		    create_custom_forward(__UpperCAmelCase   )						,__UpperCAmelCase						,use_reentrant=__UpperCAmelCase   )
																											# middle
																											A__		   =							torch.utils.checkpoint.checkpoint(
																											    create_custom_forward(self.mid_block   )						,__UpperCAmelCase						,use_reentrant=__UpperCAmelCase   )
																				else:
																											for down_block in self.down_blocks:
																																		A__		   =							torch.utils.checkpoint.checkpoint(create_custom_forward(__UpperCAmelCase   )						,__UpperCAmelCase   )
																											# middle
																											A__		   =							torch.utils.checkpoint.checkpoint(create_custom_forward(self.mid_block   )						,__UpperCAmelCase   )

													else:
																				# down
																				for down_block in self.down_blocks:
																											A__		   =							down_block(__UpperCAmelCase   )

																				# middle
																				A__		   =							self.mid_block(__UpperCAmelCase   )

													# post-process
													A__		   =							self.conv_norm_out(__UpperCAmelCase   )
													A__		   =							self.conv_act(__UpperCAmelCase   )
													A__		   =							self.conv_out(__UpperCAmelCase   )

													return sample






class 			UpperCamelCase__(	nn.Module       ):





						def __init__(				self						,__UpperCAmelCase=3						,__UpperCAmelCase=3						,__UpperCAmelCase=("UpDecoderBlock2D",)						,__UpperCAmelCase=(64,)						,__UpperCAmelCase=2						,__UpperCAmelCase=32						,__UpperCAmelCase="silu"						,__UpperCAmelCase="group"						,)    -> Any:
													super().__init__()
													A__		   =							layers_per_block

													A__		   =							nn.Convad(
													    __UpperCAmelCase						,block_out_channels[-1]						,kernel_size=3						,stride=1						,padding=1						,)

													A__		   =							None
													A__		   =							nn.ModuleList([]   )

													A__		   =							in_channels if norm_type == 'spatial' else None

													# mid
													A__		   =							UNetMidBlockaD(
													    in_channels=block_out_channels[-1]						,resnet_eps=1e-6						,resnet_act_fn=__UpperCAmelCase						,output_scale_factor=1						,resnet_time_scale_shift='default' if norm_type == 'group' else norm_type						,attention_head_dim=block_out_channels[-1]						,resnet_groups=__UpperCAmelCase						,temb_channels=__UpperCAmelCase						,)

													# up
													A__		   =							list(reversed(__UpperCAmelCase   )   )
													A__		   =							reversed_block_out_channels[0]
													for i, up_block_type in enumerate(__UpperCAmelCase   ):
																				A__		   =							output_channel
																				A__		   =							reversed_block_out_channels[i]

																				A__		   =							i == len(__UpperCAmelCase   ) - 1

																				A__		   =							get_up_block(
																				    __UpperCAmelCase						,num_layers=self.layers_per_block + 1						,in_channels=__UpperCAmelCase						,out_channels=__UpperCAmelCase						,prev_output_channel=__UpperCAmelCase						,add_upsample=not is_final_block						,resnet_eps=1e-6						,resnet_act_fn=__UpperCAmelCase						,resnet_groups=__UpperCAmelCase						,attention_head_dim=__UpperCAmelCase						,temb_channels=__UpperCAmelCase						,resnet_time_scale_shift=__UpperCAmelCase						,)
																				self.up_blocks.append(__UpperCAmelCase   )
																				A__		   =							output_channel

													# out
													if norm_type == "spatial":
																				A__		   =							SpatialNorm(block_out_channels[0]						,__UpperCAmelCase   )
													else:
																				A__		   =							nn.GroupNorm(num_channels=block_out_channels[0]						,num_groups=__UpperCAmelCase						,eps=1e-6   )
													A__		   =							nn.SiLU()
													A__		   =							nn.Convad(block_out_channels[0]						,__UpperCAmelCase						,3						,padding=1   )

													A__		   =							False





						def  snake_case__		(				self						,__UpperCAmelCase						,__UpperCAmelCase=None   )    -> Dict:
													A__		   =							z
													A__		   =							self.conv_in(__UpperCAmelCase   )

													A__		   =							next(iter(self.up_blocks.parameters()   )   ).dtype
													if self.training and self.gradient_checkpointing:

																				def create_custom_forward(__UpperCAmelCase   ):
																											def custom_forward(*__UpperCAmelCase   ):
																																		return module(*__UpperCAmelCase   )

																											return custom_forward

																				if is_torch_version('>='						,'1.11.0'   ):
																											# middle
																											A__		   =							torch.utils.checkpoint.checkpoint(
																											    create_custom_forward(self.mid_block   )						,__UpperCAmelCase						,__UpperCAmelCase						,use_reentrant=__UpperCAmelCase   )
																											A__		   =							sample.to(__UpperCAmelCase   )

																											# up
																											for up_block in self.up_blocks:
																																		A__		   =							torch.utils.checkpoint.checkpoint(
																																		    create_custom_forward(__UpperCAmelCase   )						,__UpperCAmelCase						,__UpperCAmelCase						,use_reentrant=__UpperCAmelCase   )
																				else:
																											# middle
																											A__		   =							torch.utils.checkpoint.checkpoint(
																											    create_custom_forward(self.mid_block   )						,__UpperCAmelCase						,__UpperCAmelCase   )
																											A__		   =							sample.to(__UpperCAmelCase   )

																											# up
																											for up_block in self.up_blocks:
																																		A__		   =							torch.utils.checkpoint.checkpoint(create_custom_forward(__UpperCAmelCase   )						,__UpperCAmelCase						,__UpperCAmelCase   )
													else:
																				# middle
																				A__		   =							self.mid_block(__UpperCAmelCase						,__UpperCAmelCase   )
																				A__		   =							sample.to(__UpperCAmelCase   )

																				# up
																				for up_block in self.up_blocks:
																											A__		   =							up_block(__UpperCAmelCase						,__UpperCAmelCase   )

        # post-process
													if latent_embeds is None:
																				A__		   =							self.conv_norm_out(__UpperCAmelCase   )
													else:
																				A__		   =							self.conv_norm_out(__UpperCAmelCase						,__UpperCAmelCase   )
													A__		   =							self.conv_act(__UpperCAmelCase   )
													A__		   =							self.conv_out(__UpperCAmelCase   )

													return sample






class 			UpperCamelCase__(	nn.Module       ):





						def __init__(				self						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase						,__UpperCAmelCase=None						,__UpperCAmelCase="random"						,__UpperCAmelCase=False						,__UpperCAmelCase=True   )    -> Tuple:
													super().__init__()
													A__		   =							n_e
													A__		   =							vq_embed_dim
													A__		   =							beta
													A__		   =							legacy

													A__		   =							nn.Embedding(self.n_e						,self.vq_embed_dim   )
													self.embedding.weight.data.uniform_(-1.0 / self.n_e						,1.0 / self.n_e   )

													A__		   =							remap
													if self.remap is not None:
																				self.register_buffer('used'						,torch.tensor(np.load(self.remap   )   )   )
																				A__		   =							self.used.shape[0]
																				A__		   =							unknown_index  # "random" or "extra" or integer
																				if self.unknown_index == "extra":
																											A__		   =							self.re_embed
																											A__		   =							self.re_embed + 1
																				print(
																				    f'''Remapping {self.n_e} indices to {self.re_embed} indices. '''
																				    f'''Using {self.unknown_index} for unknown indices.'''   )
													else:
																				A__		   =							n_e

													A__		   =							sane_index_shape





						def  snake_case__		(				self						,__UpperCAmelCase   )    -> List[str]:
													A__		   =							inds.shape
													assert len(__UpperCAmelCase   ) > 1
													A__		   =							inds.reshape(ishape[0]						,-1   )
													A__		   =							self.used.to(__UpperCAmelCase   )
													A__		   =							(inds[:, :, None] == used[None, None, ...]).long()
													A__		   =							match.argmax(-1   )
													A__		   =							match.sum(2   ) < 1
													if self.unknown_index == "random":
																				A__		   =							torch.randint(0						,self.re_embed						,size=new[unknown].shape   ).to(device=new.device   )
													else:
																				A__		   =							self.unknown_index
													return new.reshape(__UpperCAmelCase   )





						def  snake_case__		(				self						,__UpperCAmelCase   )    -> Optional[Any]:
													A__		   =							inds.shape
													assert len(__UpperCAmelCase   ) > 1
													A__		   =							inds.reshape(ishape[0]						,-1   )
													A__		   =							self.used.to(__UpperCAmelCase   )
													if self.re_embed > self.used.shape[0]:  # extra token
																				A__		   =							0  # simply set to zero
													A__		   =							torch.gather(used[None, :][inds.shape[0] * [0], :]						,1						,__UpperCAmelCase   )
													return back.reshape(__UpperCAmelCase   )





						def  snake_case__		(				self						,__UpperCAmelCase   )    -> Dict:
													# reshape z -> (batch, height, width, channel) and flatten
													A__		   =							z.permute(0						,2						,3						,1   ).contiguous()
													A__		   =							z.view(-1						,self.vq_embed_dim   )

													# distances from z to embeddings e_j (z - e)^2 = z^2 + e^2 - 2 e * z
													A__		   =							torch.argmin(torch.cdist(__UpperCAmelCase						,self.embedding.weight   )						,dim=1   )

													A__		   =							self.embedding(__UpperCAmelCase   ).view(z.shape   )
													A__		   =							None
													A__		   =							None

													# compute loss for embedding
													if not self.legacy:
																				A__		   =							self.beta * torch.mean((z_q.detach() - z) ** 2   ) + torch.mean((z_q - z.detach()) ** 2   )
													else:
																				A__		   =							torch.mean((z_q.detach() - z) ** 2   ) + self.beta * torch.mean((z_q - z.detach()) ** 2   )

													# preserve gradients
													A__		   =							z + (z_q - z).detach()

													# reshape back to match original input shape
													A__		   =							z_q.permute(0						,3						,1						,2   ).contiguous()

													if self.remap is not None:
																				A__		   =							min_encoding_indices.reshape(z.shape[0]						,-1   )  # add batch axis
																				A__		   =							self.remap_to_used(__UpperCAmelCase   )
																				A__		   =							min_encoding_indices.reshape(-1						,1   )  # flatten

													if self.sane_index_shape:
																				A__		   =							min_encoding_indices.reshape(z_q.shape[0]						,z_q.shape[2]						,z_q.shape[3]   )

													return z_q, loss, (perplexity, min_encodings, min_encoding_indices)





						def  snake_case__		(				self						,__UpperCAmelCase						,__UpperCAmelCase   )    -> str:
													# shape specifying (batch, height, width, channel)
													if self.remap is not None:
																				A__		   =							indices.reshape(shape[0]						,-1   )  # add batch axis
																				A__		   =							self.unmap_to_all(__UpperCAmelCase   )
																				A__		   =							indices.reshape(-1   )  # flatten again

													# get quantized latent vectors
													A__		   =							self.embedding(__UpperCAmelCase   )

													if shape is not None:
																				A__		   =							z_q.view(__UpperCAmelCase   )
																				# reshape back to match original input shape
																				A__		   =							z_q.permute(0						,3						,1						,2   ).contiguous()

													return z_q






class 			UpperCamelCase__(	__A       ):





						def __init__(				self						,__UpperCAmelCase						,__UpperCAmelCase=False   )    -> Any:
													A__		   =							parameters
													A__   ,     A__		   =							torch.chunk(__UpperCAmelCase						,2						,dim=1   )
													A__		   =							torch.clamp(self.logvar						,-3_0.0						,2_0.0   )
													A__		   =							deterministic
													A__		   =							torch.exp(0.5 * self.logvar   )
													A__		   =							torch.exp(self.logvar   )
													if self.deterministic:
																				A__		   =							A__		   =							torch.zeros_like(
																				    self.mean						,device=self.parameters.device						,dtype=self.parameters.dtype   )





						def  snake_case__		(				self						,__UpperCAmelCase = None   )    -> torch.FloatTensor:
													# make sure sample is on the same device as the parameters and has same dtype
													A__		   =							randn_tensor(
													    self.mean.shape						,generator=__UpperCAmelCase						,device=self.parameters.device						,dtype=self.parameters.dtype   )
													A__		   =							self.mean + self.std * sample
													return x





						def  snake_case__		(				self						,__UpperCAmelCase=None   )    -> int:
													if self.deterministic:
																				return torch.Tensor([0.0]   )
													else:
																				if other is None:
																											return 0.5 * torch.sum(torch.pow(self.mean						,2   ) + self.var - 1.0 - self.logvar						,dim=[1, 2, 3]   )
																				else:
																											return 0.5 * torch.sum(
																											    torch.pow(self.mean - other.mean						,2   ) / other.var
																											    + self.var / other.var
																											    - 1.0
																											    - self.logvar
																											    + other.logvar						,dim=[1, 2, 3]						,)





						def  snake_case__		(				self						,__UpperCAmelCase						,__UpperCAmelCase=[1, 2, 3]   )    -> List[Any]:
													if self.deterministic:
																				return torch.Tensor([0.0]   )
													A__		   =							np.log(2.0 * np.pi   )
													return 0.5 * torch.sum(logtwopi + self.logvar + torch.pow(sample - self.mean						,2   ) / self.var						,dim=__UpperCAmelCase   )





						def  snake_case__		(				self   )    -> Optional[Any]:
													return self.mean





