






# Copyright (c) 2019 Uber Technologies, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import argparse
import csv
import json
import math
import time

import numpy as np
import torch
import torch.optim as optim
import torch.utils.data as data
from nltk.tokenize.treebank import TreebankWordDetokenizer
from pplm_classification_head import ClassificationHead
from torch import nn
from torchtext import data as torchtext_data
from torchtext import datasets
from tqdm import tqdm, trange

from transformers import GPTaLMHeadModel, GPTaTokenizer


torch.manual_seed(0)
np.random.seed(0)
__UpperCAmelCase      				=							1e-10
__UpperCAmelCase      				=							"This is incredible! I love it, this is the best chicken I have ever had."
__UpperCAmelCase      				=							1_0_0
class 					a_(						nn.Module					):



     """simple docstring"""



     def __init__(						self			:					Optional[Any]       ,       lowerCAmelCase__			:					Optional[int]       ,       lowerCAmelCase__			:					Optional[Any]="gpt2-medium"       ,       lowerCAmelCase__			:					List[Any]=False       ,       lowerCAmelCase__			:					str="cpu")    ->					List[Any]:

      """simple docstring"""
      super().__init__()
      SCREAMING_SNAKE_CASE							  =						GPTaTokenizer.from_pretrained(lowerCAmelCase__)
      SCREAMING_SNAKE_CASE							  =						GPTaLMHeadModel.from_pretrained(lowerCAmelCase__)
      SCREAMING_SNAKE_CASE							  =						self.encoder.transformer.config.hidden_size
      SCREAMING_SNAKE_CASE							  =						ClassificationHead(class_size=lowerCAmelCase__       ,       embed_size=self.embed_size)
      SCREAMING_SNAKE_CASE							  =						cached_mode
      SCREAMING_SNAKE_CASE							  =						device





     def   __UpperCamelCase		(						self			:					List[str])    ->					Any:

      """simple docstring"""
      return self.classifier_head





     def   __UpperCamelCase		(						self			:					List[str])    ->					Optional[Any]:

      """simple docstring"""
      for param in self.encoder.parameters():
       SCREAMING_SNAKE_CASE							  =						False
      self.classifier_head.train()





     def   __UpperCamelCase		(						self			:					Dict       ,       lowerCAmelCase__			:					Optional[Any])    ->					List[Any]:

      """simple docstring"""
      SCREAMING_SNAKE_CASE							  =						x.ne(0).unsqueeze(2).repeat(1       ,       1       ,       self.embed_size).float().to(self.device).detach()
      SCREAMING_SNAKE_CASE							  =						self.encoder.transformer(lowerCAmelCase__)['last_hidden_state']
      SCREAMING_SNAKE_CASE							  =						hidden * mask
      SCREAMING_SNAKE_CASE							  =						torch.sum(lowerCAmelCase__       ,       dim=1) / (torch.sum(lowerCAmelCase__       ,       dim=1).detach() + EPSILON)
      return avg_hidden





     def   __UpperCamelCase		(						self			:					List[str]       ,       lowerCAmelCase__			:					Optional[int])    ->					Dict:

      """simple docstring"""
      if self.cached_mode:
       SCREAMING_SNAKE_CASE							  =						x.to(self.device)
      else:
       SCREAMING_SNAKE_CASE							  =						self.avg_representation(x.to(self.device))

      SCREAMING_SNAKE_CASE							  =						self.classifier_head(lowerCAmelCase__)
      SCREAMING_SNAKE_CASE							  =						nn.functional.log_softmax(lowerCAmelCase__       ,       dim=-1)

      return probs

class 					a_(						data.Dataset					):



     """simple docstring"""



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

      """simple docstring"""
      SCREAMING_SNAKE_CASE							  =						X
      SCREAMING_SNAKE_CASE							  =						y





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

      """simple docstring"""
      return len(self.X)





     def __getitem__(						self			:					str       ,       lowerCAmelCase__			:					str)    ->					List[Any]:

      """simple docstring"""
      SCREAMING_SNAKE_CASE							  =						{}
      SCREAMING_SNAKE_CASE							  =						self.X[index]
      SCREAMING_SNAKE_CASE							  =						self.y[index]
      return data





def 		A_			(		lowercase_	)							->Tuple:







 """simple docstring"""

 def pad_sequences(lowercase_	):
  SCREAMING_SNAKE_CASE							  =						[len(lowercase_	) for seq in sequences]

  SCREAMING_SNAKE_CASE							  =						torch.zeros(len(lowercase_	)					,       max(lowercase_	)	).long()  # padding value = 0

  for i, seq in enumerate(lowercase_	):
   SCREAMING_SNAKE_CASE							  =						lengths[i]
   SCREAMING_SNAKE_CASE							  =						seq[:end]

  return padded_sequences, lengths

 SCREAMING_SNAKE_CASE							  =						{}
 for key in data[0].keys():
  SCREAMING_SNAKE_CASE							  =						[d[key] for d in data]

 SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						pad_sequences(item_info['X']	)
 SCREAMING_SNAKE_CASE							  =						torch.tensor(item_info['y']					,       dtype=torch.long	)

 return x_batch, y_batch





def 		A_			(		lowercase_	)							->Optional[Any]:







 """simple docstring"""

 SCREAMING_SNAKE_CASE							  =						{}
 for key in data[0].keys():
  SCREAMING_SNAKE_CASE							  =						[d[key] for d in data]

 SCREAMING_SNAKE_CASE							  =						torch.cat(item_info['X']					,       0	)
 SCREAMING_SNAKE_CASE							  =						torch.tensor(item_info['y']					,       dtype=torch.long	)

 return x_batch, y_batch





def 		A_			(		lowercase_					,       lowercase_					,       lowercase_					,       lowercase_=0					,       lowercase_=1_0					,       lowercase_="cpu"	)							->Any:







 """simple docstring"""

 SCREAMING_SNAKE_CASE							  =						0
 discriminator.train_custom()
 for batch_idx, (input_t, target_t) in enumerate(lowercase_	):
  SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						input_t.to(lowercase_	), target_t.to(lowercase_	)

  optimizer.zero_grad()

  SCREAMING_SNAKE_CASE							  =						discriminator(lowercase_	)
  SCREAMING_SNAKE_CASE							  =						nn.functional.nll_loss(lowercase_					,       lowercase_	)
  loss.backward(retain_graph=lowercase_	)
  optimizer.step()

  samples_so_far += len(lowercase_	)

  if batch_idx % log_interval == 0:
   print(
       'Train Epoch: {} [{}/{} ({:.0f}%)]\tLoss: {:.6f}'.format(
           epoch + 1					,       lowercase_					,       len(data_loader.dataset	)					,       1_0_0 * samples_so_far / len(data_loader.dataset	)					,       loss.item()					,       )	)





def 		A_			(		lowercase_					,       lowercase_					,       lowercase_="cpu"	)							->Dict:







 """simple docstring"""

 discriminator.eval()
 SCREAMING_SNAKE_CASE							  =						0
 SCREAMING_SNAKE_CASE							  =						0
 with torch.no_grad():
  for input_t, target_t in data_loader:
   SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						input_t.to(lowercase_	), target_t.to(lowercase_	)
   SCREAMING_SNAKE_CASE							  =						discriminator(lowercase_	)
   # sum up batch loss
   test_loss += nn.functional.nll_loss(lowercase_					,       lowercase_					,       reduction='sum'	).item()
   # get the index of the max log-probability
   SCREAMING_SNAKE_CASE							  =						output_t.argmax(dim=1					,       keepdim=lowercase_	)
   correct += pred_t.eq(target_t.view_as(lowercase_	)	).sum().item()

 test_loss /= len(data_loader.dataset	)

 print(
     'Performance on test set: Average loss: {:.4f}, Accuracy: {}/{} ({:.0f}%)'.format(
         lowercase_					,       lowercase_					,       len(data_loader.dataset	)					,       1_0_0.0 * correct / len(data_loader.dataset	)	)	)





def 		A_			(		lowercase_					,       lowercase_					,       lowercase_					,       lowercase_=False					,       lowercase_="cpu"	)							->Tuple:







 """simple docstring"""

 SCREAMING_SNAKE_CASE							  =						model.tokenizer.encode(lowercase_	)
 SCREAMING_SNAKE_CASE							  =						torch.tensor([input_t]					,       dtype=torch.long					,       device=lowercase_	)
 if cached:
  SCREAMING_SNAKE_CASE							  =						model.avg_representation(lowercase_	)

 SCREAMING_SNAKE_CASE							  =						model(lowercase_	).data.cpu().numpy().flatten().tolist()
 print('Input sentence:'					,       lowercase_	)
 print(
     'Predictions:'					,       ', '.join('{}: {:.4f}'.format(lowercase_					,       math.exp(lowercase_	)	) for c, log_prob in zip(lowercase_					,       lowercase_	)	)					,       )





def 		A_			(		lowercase_					,       lowercase_					,       lowercase_					,       lowercase_=False					,       lowercase_="cpu"	)							->Union[str, Any]:







 """simple docstring"""

 SCREAMING_SNAKE_CASE							  =						torch.utils.data.DataLoader(dataset=lowercase_					,       batch_size=lowercase_					,       collate_fn=lowercase_	)

 SCREAMING_SNAKE_CASE							  =						[]
 SCREAMING_SNAKE_CASE							  =						[]
 for batch_idx, (x, y) in enumerate(tqdm(lowercase_					,       ascii=lowercase_	)	):
  with torch.no_grad():
   SCREAMING_SNAKE_CASE							  =						x.to(lowercase_	)
   SCREAMING_SNAKE_CASE							  =						discriminator.avg_representation(lowercase_	).cpu().detach()
   SCREAMING_SNAKE_CASE							  =						torch.unbind(avg_rep.unsqueeze(1	)	)
   xs += avg_rep_list
   ys += y.cpu().numpy().tolist()

 SCREAMING_SNAKE_CASE							  =						torch.utils.data.DataLoader(
     dataset=Dataset(lowercase_					,       lowercase_	)					,       batch_size=lowercase_					,       shuffle=lowercase_					,       collate_fn=lowercase_	)

 return data_loader





def 		A_			(		lowercase_					,       lowercase_=None					,       lowercase_="gpt2-medium"					,       lowercase_=1_0					,       lowercase_=6_4					,       lowercase_=1_0					,       lowercase_=False					,       lowercase_=False					,       lowercase_=False					,       )							->List[Any]:







 """simple docstring"""

 SCREAMING_SNAKE_CASE							  =						'cuda' if torch.cuda.is_available() and not no_cuda else 'cpu'

 print('Preprocessing {} dataset...'.format(lowercase_	)	)
 SCREAMING_SNAKE_CASE							  =						time.time()

 if dataset == "SST":
  SCREAMING_SNAKE_CASE							  =						['positive', 'negative', 'very positive', 'very negative', 'neutral']
  SCREAMING_SNAKE_CASE							  =						{c: i for i, c in enumerate(lowercase_	)}

  SCREAMING_SNAKE_CASE							  =						Discriminator(
      class_size=len(lowercase_	)					,       pretrained_model=lowercase_					,       cached_mode=lowercase_					,       device=lowercase_	).to(lowercase_	)

  SCREAMING_SNAKE_CASE							  =						torchtext_data.Field()
  SCREAMING_SNAKE_CASE							  =						torchtext_data.Field(sequential=lowercase_	)
  SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						datasets.SST.splits(
      lowercase_					,       lowercase_					,       fine_grained=lowercase_					,       train_subtrees=lowercase_					,       )

  SCREAMING_SNAKE_CASE							  =						[]
  SCREAMING_SNAKE_CASE							  =						[]
  for i in trange(len(lowercase_	)					,       ascii=lowercase_	):
   SCREAMING_SNAKE_CASE							  =						TreebankWordDetokenizer().detokenize(vars(train_data[i]	)['text']	)
   SCREAMING_SNAKE_CASE							  =						discriminator.tokenizer.encode(lowercase_	)
   SCREAMING_SNAKE_CASE							  =						torch.tensor([5_0_2_5_6] + seq					,       device=lowercase_					,       dtype=torch.long	)
   x.append(lowercase_	)
   y.append(classaidx[vars(train_data[i]	)['label']]	)
  SCREAMING_SNAKE_CASE							  =						Dataset(lowercase_					,       lowercase_	)

  SCREAMING_SNAKE_CASE							  =						[]
  SCREAMING_SNAKE_CASE							  =						[]
  for i in trange(len(lowercase_	)					,       ascii=lowercase_	):
   SCREAMING_SNAKE_CASE							  =						TreebankWordDetokenizer().detokenize(vars(test_data[i]	)['text']	)
   SCREAMING_SNAKE_CASE							  =						discriminator.tokenizer.encode(lowercase_	)
   SCREAMING_SNAKE_CASE							  =						torch.tensor([5_0_2_5_6] + seq					,       device=lowercase_					,       dtype=torch.long	)
   test_x.append(lowercase_	)
   test_y.append(classaidx[vars(test_data[i]	)['label']]	)
  SCREAMING_SNAKE_CASE							  =						Dataset(lowercase_					,       lowercase_	)

  SCREAMING_SNAKE_CASE							  =						{
      'class_size': len(lowercase_	),
      'embed_size': discriminator.embed_size,
      'pretrained_model': pretrained_model,
      'class_vocab': classaidx,
      'default_class': 2,
  }

 elif dataset == "clickbait":
  SCREAMING_SNAKE_CASE							  =						['non_clickbait', 'clickbait']
  SCREAMING_SNAKE_CASE							  =						{c: i for i, c in enumerate(lowercase_	)}

  SCREAMING_SNAKE_CASE							  =						Discriminator(
      class_size=len(lowercase_	)					,       pretrained_model=lowercase_					,       cached_mode=lowercase_					,       device=lowercase_	).to(lowercase_	)

  with open('datasets/clickbait/clickbait_train_prefix.txt'	) as f:
   SCREAMING_SNAKE_CASE							  =						[]
   for i, line in enumerate(lowercase_	):
    try:
     data.append(eval(lowercase_	)	)
    except Exception:
     print('Error evaluating line {}: {}'.format(lowercase_					,       lowercase_	)	)
     continue
  SCREAMING_SNAKE_CASE							  =						[]
  SCREAMING_SNAKE_CASE							  =						[]
  with open('datasets/clickbait/clickbait_train_prefix.txt'	) as f:
   for i, line in enumerate(tqdm(lowercase_					,       ascii=lowercase_	)	):
    try:
     SCREAMING_SNAKE_CASE							  =						eval(lowercase_	)
     SCREAMING_SNAKE_CASE							  =						discriminator.tokenizer.encode(d['text']	)

     if len(lowercase_	) < max_length_seq:
      SCREAMING_SNAKE_CASE							  =						torch.tensor([5_0_2_5_6] + seq					,       device=lowercase_					,       dtype=torch.long	)
     else:
      print('Line {} is longer than maximum length {}'.format(lowercase_					,       lowercase_	)	)
      continue
     x.append(lowercase_	)
     y.append(d['label']	)
    except Exception:
     print('Error evaluating / tokenizing line {}, skipping it'.format(lowercase_	)	)
     pass

  SCREAMING_SNAKE_CASE							  =						Dataset(lowercase_					,       lowercase_	)
  SCREAMING_SNAKE_CASE							  =						int(0.9 * len(lowercase_	)	)
  SCREAMING_SNAKE_CASE							  =						len(lowercase_	) - train_size
  SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						torch.utils.data.random_split(lowercase_					,       [train_size, test_size]	)

  SCREAMING_SNAKE_CASE							  =						{
      'class_size': len(lowercase_	),
      'embed_size': discriminator.embed_size,
      'pretrained_model': pretrained_model,
      'class_vocab': classaidx,
      'default_class': 1,
  }

 elif dataset == "toxic":
  SCREAMING_SNAKE_CASE							  =						['non_toxic', 'toxic']
  SCREAMING_SNAKE_CASE							  =						{c: i for i, c in enumerate(lowercase_	)}

  SCREAMING_SNAKE_CASE							  =						Discriminator(
      class_size=len(lowercase_	)					,       pretrained_model=lowercase_					,       cached_mode=lowercase_					,       device=lowercase_	).to(lowercase_	)

  SCREAMING_SNAKE_CASE							  =						[]
  SCREAMING_SNAKE_CASE							  =						[]
  with open('datasets/toxic/toxic_train.txt'	) as f:
   for i, line in enumerate(tqdm(lowercase_					,       ascii=lowercase_	)	):
    try:
     SCREAMING_SNAKE_CASE							  =						eval(lowercase_	)
     SCREAMING_SNAKE_CASE							  =						discriminator.tokenizer.encode(d['text']	)

     if len(lowercase_	) < max_length_seq:
      SCREAMING_SNAKE_CASE							  =						torch.tensor([5_0_2_5_6] + seq					,       device=lowercase_					,       dtype=torch.long	)
     else:
      print('Line {} is longer than maximum length {}'.format(lowercase_					,       lowercase_	)	)
      continue
     x.append(lowercase_	)
     y.append(int(np.sum(d['label']	) > 0	)	)
    except Exception:
     print('Error evaluating / tokenizing line {}, skipping it'.format(lowercase_	)	)
     pass

  SCREAMING_SNAKE_CASE							  =						Dataset(lowercase_					,       lowercase_	)
  SCREAMING_SNAKE_CASE							  =						int(0.9 * len(lowercase_	)	)
  SCREAMING_SNAKE_CASE							  =						len(lowercase_	) - train_size
  SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						torch.utils.data.random_split(lowercase_					,       [train_size, test_size]	)

  SCREAMING_SNAKE_CASE							  =						{
      'class_size': len(lowercase_	),
      'embed_size': discriminator.embed_size,
      'pretrained_model': pretrained_model,
      'class_vocab': classaidx,
      'default_class': 0,
  }

 else:  # if dataset == "generic":
  # This assumes the input dataset is a TSV with the following structure:
  # class \t text

  if dataset_fp is None:
   raise ValueError('When generic dataset is selected, dataset_fp needs to be specified aswell.'	)

  SCREAMING_SNAKE_CASE							  =						set()
  with open(lowercase_	) as f:
   SCREAMING_SNAKE_CASE							  =						csv.reader(lowercase_					,       delimiter='\t'	)
   for row in tqdm(lowercase_					,       ascii=lowercase_	):
    if row:
     classes.add(row[0]	)

  SCREAMING_SNAKE_CASE							  =						sorted(lowercase_	)
  SCREAMING_SNAKE_CASE							  =						{c: i for i, c in enumerate(lowercase_	)}

  SCREAMING_SNAKE_CASE							  =						Discriminator(
      class_size=len(lowercase_	)					,       pretrained_model=lowercase_					,       cached_mode=lowercase_					,       device=lowercase_	).to(lowercase_	)

  SCREAMING_SNAKE_CASE							  =						[]
  SCREAMING_SNAKE_CASE							  =						[]
  with open(lowercase_	) as f:
   SCREAMING_SNAKE_CASE							  =						csv.reader(lowercase_					,       delimiter='\t'	)
   for i, row in enumerate(tqdm(lowercase_					,       ascii=lowercase_	)	):
    if row:
     SCREAMING_SNAKE_CASE							  =						row[0]
     SCREAMING_SNAKE_CASE							  =						row[1]

     try:
      SCREAMING_SNAKE_CASE							  =						discriminator.tokenizer.encode(lowercase_	)
      if len(lowercase_	) < max_length_seq:
       SCREAMING_SNAKE_CASE							  =						torch.tensor([5_0_2_5_6] + seq					,       device=lowercase_					,       dtype=torch.long	)

      else:
       print('Line {} is longer than maximum length {}'.format(lowercase_					,       lowercase_	)	)
       continue

      x.append(lowercase_	)
      y.append(classaidx[label]	)

     except Exception:
      print('Error tokenizing line {}, skipping it'.format(lowercase_	)	)
      pass

  SCREAMING_SNAKE_CASE							  =						Dataset(lowercase_					,       lowercase_	)
  SCREAMING_SNAKE_CASE							  =						int(0.9 * len(lowercase_	)	)
  SCREAMING_SNAKE_CASE							  =						len(lowercase_	) - train_size
  SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						torch.utils.data.random_split(lowercase_					,       [train_size, test_size]	)

  SCREAMING_SNAKE_CASE							  =						{
      'class_size': len(lowercase_	),
      'embed_size': discriminator.embed_size,
      'pretrained_model': pretrained_model,
      'class_vocab': classaidx,
      'default_class': 0,
  }

 SCREAMING_SNAKE_CASE							  =						time.time()
 print('Preprocessed {} data points'.format(len(lowercase_	) + len(lowercase_	)	)	)
 print('Data preprocessing took: {:.3f}s'.format(end - start	)	)

 if cached:
  print('Building representation cache...'	)

  SCREAMING_SNAKE_CASE							  =						time.time()

  SCREAMING_SNAKE_CASE							  =						get_cached_data_loader(lowercase_					,       lowercase_					,       lowercase_					,       shuffle=lowercase_					,       device=lowercase_	)

  SCREAMING_SNAKE_CASE							  =						get_cached_data_loader(lowercase_					,       lowercase_					,       lowercase_					,       device=lowercase_	)

  SCREAMING_SNAKE_CASE							  =						time.time()
  print('Building representation cache took: {:.3f}s'.format(end - start	)	)

 else:
  SCREAMING_SNAKE_CASE							  =						torch.utils.data.DataLoader(
      dataset=lowercase_					,       batch_size=lowercase_					,       shuffle=lowercase_					,       collate_fn=lowercase_	)
  SCREAMING_SNAKE_CASE							  =						torch.utils.data.DataLoader(dataset=lowercase_					,       batch_size=lowercase_					,       collate_fn=lowercase_	)

 if save_model:
  with open('{}_classifier_head_meta.json'.format(lowercase_	)					,       'w'	) as meta_file:
   json.dump(lowercase_					,       lowercase_	)

 SCREAMING_SNAKE_CASE							  =						optim.Adam(discriminator.parameters()					,       lr=0.0_0_0_1	)

 for epoch in range(lowercase_	):
  SCREAMING_SNAKE_CASE							  =						time.time()
  print('\nEpoch'					,       epoch + 1	)

  train_epoch(
      discriminator=lowercase_					,       data_loader=lowercase_					,       optimizer=lowercase_					,       epoch=lowercase_					,       log_interval=lowercase_					,       device=lowercase_					,       )
  evaluate_performance(data_loader=lowercase_					,       discriminator=lowercase_					,       device=lowercase_	)

  SCREAMING_SNAKE_CASE							  =						time.time()
  print('Epoch took: {:.3f}s'.format(end - start	)	)

  print('\nExample prediction'	)
  predict(lowercase_					,       lowercase_					,       lowercase_					,       cached=lowercase_					,       device=lowercase_	)

  if save_model:
   # torch.save(discriminator.state_dict(),
   #           "{}_discriminator_{}.pt".format(
   #               args.dataset, epoch + 1
   #               ))
   torch.save(
       discriminator.get_classifier().state_dict()					,       '{}_classifier_head_epoch_{}.pt'.format(lowercase_					,       epoch + 1	)					,       )


if __name__ == "__main__":
      __UpperCAmelCase      				=							argparse.ArgumentParser(description="Train a discriminator on top of GPT-2 representations")
      parser.add_argument(
          "--dataset",
          type=str,
          default="SST",
          choices=("SST", "clickbait", "toxic", "generic"),
          help=(
              "dataset to train the discriminator on."
              "In case of generic, the dataset is expected"
              "to be a TSBV file with structure: class \\t text"
          ),
      )
      parser.add_argument(
          "--dataset_fp",
          type=str,
          default="",
          help="File path of the dataset to use. Needed only in case of generic datadset",
      )
      parser.add_argument(
          "--pretrained_model", type=str, default="gpt2-medium", help="Pretrained model to use as encoder"
      )
      parser.add_argument("--epochs", type=int, default=1_0, metavar="N", help="Number of training epochs")
      parser.add_argument(
          "--batch_size", type=int, default=6_4, metavar="N", help="input batch size for training (default: 64)"
      )
      parser.add_argument(
          "--log_interval",
          type=int,
          default=1_0,
          metavar="N",
          help="how many batches to wait before logging training status",
      )
      parser.add_argument("--save_model", action="store_true", help="whether to save the model")
      parser.add_argument("--cached", action="store_true", help="whether to cache the input representations")
      parser.add_argument("--no_cuda", action="store_true", help="use to turn off cuda")
      __UpperCAmelCase      				=							parser.parse_args()

      train_discriminator(**(vars(args)))












from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available


__UpperCAmelCase      				=							{"configuration_visual_bert": ["VISUAL_BERT_PRETRAINED_CONFIG_ARCHIVE_MAP", "VisualBertConfig"]}

try:
      if not is_torch_available():
            raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
      pass
else:
      __UpperCAmelCase      				=							[
          "VISUAL_BERT_PRETRAINED_MODEL_ARCHIVE_LIST",
          "VisualBertForMultipleChoice",
          "VisualBertForPreTraining",
          "VisualBertForQuestionAnswering",
          "VisualBertForRegionToPhraseAlignment",
          "VisualBertForVisualReasoning",
          "VisualBertLayer",
          "VisualBertModel",
          "VisualBertPreTrainedModel",
      ]


if TYPE_CHECKING:
      from .configuration_visual_bert import VISUAL_BERT_PRETRAINED_CONFIG_ARCHIVE_MAP, VisualBertConfig

      try:
            if not is_torch_available():
                  raise OptionalDependencyNotAvailable()
      except OptionalDependencyNotAvailable:
            pass
      else:
            from .modeling_visual_bert import (
                VISUAL_BERT_PRETRAINED_MODEL_ARCHIVE_LIST,
                VisualBertForMultipleChoice,
                VisualBertForPreTraining,
                VisualBertForQuestionAnswering,
                VisualBertForRegionToPhraseAlignment,
                VisualBertForVisualReasoning,
                VisualBertLayer,
                VisualBertModel,
                VisualBertPreTrainedModel,
            )


else:
      import sys

      __UpperCAmelCase      				=							_LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)




