





'''simple docstring'''



import torch
from torch import nn
from torch.nn import CrossEntropyLoss, MSELoss

from ....modeling_outputs import BaseModelOutputWithPooling, SequenceClassifierOutput
from ....modeling_utils import ModuleUtilsMixin
from ....utils import add_start_docstrings, add_start_docstrings_to_model_forward, logging, replace_return_docstrings


UpperCAmelCase_    :					Optional[int]					      =						logging.get_logger(__name__)

UpperCAmelCase_    :					Dict					      =						'''MMBTConfig'''





class       lowerCAmelCase				(	nn.Module):


       def __init__(				self      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE					) ->					Union[str, Any]:



            '''simple docstring'''




            super().__init__()
            __snake_case         =					config
            __snake_case         =					encoder
            __snake_case         =					nn.Linear(config.modal_hidden_size      ,					config.hidden_size					)
            __snake_case         =					embeddings.position_embeddings
            __snake_case         =					embeddings.token_type_embeddings
            __snake_case         =					embeddings.word_embeddings
            __snake_case         =					embeddings.LayerNorm
            __snake_case         =					nn.Dropout(p=config.hidden_dropout_prob					)




       def  lowerCAmelCase (				self      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None					) ->					Tuple:



            '''simple docstring'''




            __snake_case         =					self.proj_embeddings(self.encoder(_A					)					)
            __snake_case         =					token_embeddings.size(1					)

            if start_token is not None:
                 __snake_case         =					self.word_embeddings(_A					)
                 seq_length += 1
                 __snake_case         =					torch.cat([start_token_embeds.unsqueeze(1					), token_embeddings]      ,					dim=1					)

            if end_token is not None:
                 __snake_case         =					self.word_embeddings(_A					)
                 seq_length += 1
                 __snake_case         =					torch.cat([token_embeddings, end_token_embeds.unsqueeze(1					)]      ,					dim=1					)

            if position_ids is None:
                 __snake_case         =					torch.arange(_A      ,					dtype=torch.long      ,					device=input_modal.device					)
                 __snake_case         =					position_ids.unsqueeze(0					).expand(input_modal.size(0					)      ,					_A					)

            if token_type_ids is None:
                 __snake_case         =					torch.zeros(
                     (input_modal.size(0					), seq_length)      ,					dtype=torch.long      ,					device=input_modal.device					)

            __snake_case         =					self.position_embeddings(_A					)
            __snake_case         =					self.token_type_embeddings(_A					)
            __snake_case         =					token_embeddings + position_embeddings + token_type_embeddings
            __snake_case         =					self.LayerNorm(_A					)
            __snake_case         =					self.dropout(_A					)
            return embeddings





UpperCAmelCase_    :					List[str]					      =						R'''
    MMBT model was proposed in [Supervised Multimodal Bitransformers for Classifying Images and
    Text](https://github.com/facebookresearch/mmbt) by Douwe Kiela, Suvrat Bhooshan, Hamed Firooz, Davide Testuggine.
    It\'s a supervised multimodal bitransformer model that fuses information from text and other image encoders, and
    obtain state-of-the-art performance on various multimodal classification benchmark tasks.

    This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
    library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
    etc.)

    This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
    Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
    and behavior.

    Parameters:
        config ([`MMBTConfig`]): Model configuration class with all the parameters of the model.
            Initializing with a config file does not load the weights associated with the model, only the
            configuration.
        transformer (`nn.Module`): A text transformer that is used by MMBT.
            It should have embeddings, encoder, and pooler attributes.
        encoder (`nn.Module`): Encoder for the second modality.
            It should take in a batch of modal inputs and return k, n dimension embeddings.
'''

UpperCAmelCase_    :					Union[str, Any]					      =						R'''
    Args:
        input_modal (`torch.FloatTensor` of shape `(batch_size, ***)`):
            The other modality data. It will be the shape that the encoder for that type expects. e.g. With an Image
            Encoder, the shape would be (batch_size, channels, height, width)
        input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
            Indices of input sequence tokens in the vocabulary. It does not expect [CLS] token to be added as it\'s
            appended to the end of other modality embeddings. Indices can be obtained using [`AutoTokenizer`]. See
            [`PreTrainedTokenizer.encode`] and [`PreTrainedTokenizer.__call__`] for details.

            [What are input IDs?](../glossary#input-ids)
        modal_start_tokens (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
            Optional start token to be added to Other Modality Embedding. [CLS] Most commonly used for classification
            tasks.
        modal_end_tokens (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
            Optional end token to be added to Other Modality Embedding. [SEP] Most commonly used.
        attention_mask (*optional*) `torch.FloatTensor` of shape `(batch_size, sequence_length)`:
            Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:

            - 1 for tokens that are **not masked**,
            - 0 for tokens that are **masked**.

            [What are attention masks?](../glossary#attention-mask)
        token_type_ids (*optional*) `torch.LongTensor` of shape `(batch_size, sequence_length)`:
            Segment token indices to indicate first and second portions of the inputs. Indices are selected in `[0,
            1]`:

            - 0 corresponds to a *sentence A* token,
            - 1 corresponds to a *sentence B* token.

            [What are token type IDs?](../glossary#token-type-ids)
        modal_token_type_ids (*optional*) `torch.LongTensor` of shape `(batch_size, modal_sequence_length)`:
            Segment token indices to indicate different portions of the non-text modality. The embeddings from these
            tokens will be summed with the respective token embeddings for the non-text modality.
        position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
            Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
            config.max_position_embeddings - 1]`.

            [What are position IDs?](../glossary#position-ids)
        modal_position_ids (`torch.LongTensor` of shape `(batch_size, modal_sequence_length)`, *optional*):
            Indices of positions of each input sequence tokens in the position embeddings for the non-text modality.
            Selected in the range `[0, config.max_position_embeddings - 1]`.

            [What are position IDs?](../glossary#position-ids)
        head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
            Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:

            - 1 indicates the head is **not masked**,
            - 0 indicates the head is **masked**.

        inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, embedding_dim)`, *optional*):
            Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
            is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
            model\'s internal embedding lookup matrix.
        encoder_hidden_states (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
            Sequence of hidden-states at the output of the last layer of the encoder. Used in the cross-attention if
            the model is configured as a decoder.
        encoder_attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*):
            Mask to avoid performing attention on the padding token indices of the encoder input. This mask is used in
            the cross-attention if the model is configured as a decoder. Mask values selected in `[0, 1]`:

            - 1 for tokens that are **not masked**,
            - 0 for tokens that are **masked**.

        output_attentions (`bool`, *optional*):
            Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
            tensors for more detail.
        output_hidden_states (`bool`, *optional*):
            Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
            more detail.
        return_dict (`bool`, *optional*):
            Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
'''





@add_start_docstrings(
    '''The bare MMBT Model outputting raw hidden-states without any specific head on top.'''			,				A__			,				)
class       lowerCAmelCase				(	nn.Module			,				A__):


       def __init__(				self      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE					) ->					Dict:



            '''simple docstring'''




            super().__init__()
            __snake_case         =					config
            __snake_case         =					transformer
            __snake_case         =					ModalEmbeddings(_A      ,					_A      ,					transformer.embeddings					)


       @add_start_docstrings_to_model_forward(_A					)
       @replace_return_docstrings(output_type=_A      ,					config_class=_CONFIG_FOR_DOC					)
       def  lowerCAmelCase (				self      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					) ->					Dict:



            '''simple docstring'''




            __snake_case         =					output_attentions if output_attentions is not None else self.config.output_attentions
            __snake_case         =					(
                output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
            )
            __snake_case         =					return_dict if return_dict is not None else self.config.use_return_dict

            if input_ids is not None and inputs_embeds is not None:
                 raise ValueError('''You cannot specify both input_ids and inputs_embeds at the same time'''					)
            elif input_ids is not None:
                 __snake_case         =					input_ids.size()
            elif inputs_embeds is not None:
                 __snake_case         =					inputs_embeds.size()[:-1]
            else:
                 raise ValueError('''You have to specify either input_ids or inputs_embeds'''					)

            __snake_case         =					input_ids.device if input_ids is not None else inputs_embeds.device

            __snake_case         =					self.modal_encoder(
                _A      ,					start_token=_A      ,					end_token=_A      ,					position_ids=_A      ,					token_type_ids=_A      ,					)

            __snake_case         =					modal_embeddings.size()[:-1]

            if token_type_ids is None:
                 __snake_case         =					torch.ones(_A      ,					dtype=torch.long      ,					device=_A					)

            __snake_case         =					self.transformer.embeddings(
                input_ids=_A      ,					position_ids=_A      ,					token_type_ids=_A      ,					inputs_embeds=_A					)

            __snake_case         =					torch.cat([modal_embeddings, txt_embeddings]      ,					1					)

            __snake_case         =					embedding_output.size()[:-1]

            if attention_mask is None:
                 __snake_case         =					torch.ones(_A      ,					device=_A					)
            else:
                 __snake_case         =					torch.cat(
                     [torch.ones(_A      ,					device=_A      ,					dtype=torch.long					), attention_mask]      ,					dim=1					)
            if encoder_attention_mask is None:
                 __snake_case         =					torch.ones(_A      ,					device=_A					)
            else:
                 __snake_case         =					torch.cat(
                     [torch.ones(_A      ,					device=_A					), encoder_attention_mask]      ,					dim=1					)

            __snake_case         =					self.get_extended_attention_mask(_A      ,					_A					)
            __snake_case         =					self.invert_attention_mask(_A					)
            __snake_case         =					self.get_head_mask(_A      ,					self.config.num_hidden_layers					)

            __snake_case         =					self.transformer.encoder(
                _A      ,					attention_mask=_A      ,					head_mask=_A      ,					encoder_hidden_states=_A      ,					encoder_attention_mask=_A      ,					output_attentions=_A      ,					output_hidden_states=_A      ,					return_dict=_A      ,					)

            __snake_case         =					encoder_outputs[0]
            __snake_case         =					self.transformer.pooler(_A					)

            if not return_dict:
                 return (sequence_output, pooled_output) + encoder_outputs[1:]

            return BaseModelOutputWithPooling(
                last_hidden_state=_A      ,					pooler_output=_A      ,					hidden_states=encoder_outputs.hidden_states      ,					attentions=encoder_outputs.attentions      ,					)


       def  lowerCAmelCase (				self					) ->					Union[str, Any]:



            '''simple docstring'''




            return self.embeddings.word_embeddings




       def  lowerCAmelCase (				self      ,					__SCREAMING_SNAKE_CASE					) ->					Optional[Any]:



            '''simple docstring'''




            __snake_case         =					value





@add_start_docstrings(
    '''\n    MMBT Model with a sequence classification/regression head on top (a linear layer on top of the pooled output)\n    '''			,				A__			,				A__			,				)
class       lowerCAmelCase				(	nn.Module):


       def __init__(				self      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE					) ->					List[str]:



            '''simple docstring'''




            super().__init__()
            __snake_case         =					config.num_labels

            __snake_case         =					MMBTModel(_A      ,					_A      ,					_A					)
            __snake_case         =					nn.Dropout(config.hidden_dropout_prob					)
            __snake_case         =					nn.Linear(config.hidden_size      ,					config.num_labels					)




       def  lowerCAmelCase (				self      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=None      ,					) ->					Dict:



            '''simple docstring'''




            __snake_case         =					return_dict if return_dict is not None else self.config.use_return_dict

            __snake_case         =					self.mmbt(
                input_modal=_A      ,					input_ids=_A      ,					modal_start_tokens=_A      ,					modal_end_tokens=_A      ,					attention_mask=_A      ,					token_type_ids=_A      ,					modal_token_type_ids=_A      ,					position_ids=_A      ,					modal_position_ids=_A      ,					head_mask=_A      ,					inputs_embeds=_A      ,					return_dict=_A      ,					)

            __snake_case         =					outputs[1]

            __snake_case         =					self.dropout(_A					)
            __snake_case         =					self.classifier(_A					)

            __snake_case         =					None
            if labels is not None:
                 if self.num_labels == 1:
                      #  We are doing regression
                      __snake_case         =					MSELoss()
                      __snake_case         =					loss_fct(logits.view(-1					)      ,					labels.view(-1					)					)
                 else:
                      __snake_case         =					CrossEntropyLoss()
                      __snake_case         =					loss_fct(logits.view(-1      ,					self.num_labels					)      ,					labels.view(-1					)					)

            if not return_dict:
                 __snake_case         =					(logits,) + outputs[2:]
                 return ((loss,) + output) if loss is not None else output

            return SequenceClassifierOutput(
                loss=_A      ,					logits=_A      ,					hidden_states=outputs.hidden_states      ,					attentions=outputs.attentions      ,					)












'''simple docstring'''



import tempfile
import unittest

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

from ...test_configuration_common import ConfigTester
from ...test_modeling_common import ModelTesterMixin, ids_tensor, random_attention_mask
from ...test_pipeline_mixin import PipelineTesterMixin


if is_torch_available():
     import torch

     from transformers import DPRContextEncoder, DPRQuestionEncoder, DPRReader, DPRReaderTokenizer
     from transformers.models.dpr.modeling_dpr import (
         DPR_CONTEXT_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST,
         DPR_QUESTION_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST,
         DPR_READER_PRETRAINED_MODEL_ARCHIVE_LIST,
     )





class       lowerCAmelCase				:


       def __init__(				self      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE=13      ,					__SCREAMING_SNAKE_CASE=7      ,					__SCREAMING_SNAKE_CASE=False      ,					__SCREAMING_SNAKE_CASE=True      ,					__SCREAMING_SNAKE_CASE=True      ,					__SCREAMING_SNAKE_CASE=True      ,					__SCREAMING_SNAKE_CASE=99      ,					__SCREAMING_SNAKE_CASE=32      ,					__SCREAMING_SNAKE_CASE=5      ,					__SCREAMING_SNAKE_CASE=4      ,					__SCREAMING_SNAKE_CASE=37      ,					__SCREAMING_SNAKE_CASE="gelu"      ,					__SCREAMING_SNAKE_CASE=0.1      ,					__SCREAMING_SNAKE_CASE=0.1      ,					__SCREAMING_SNAKE_CASE=512      ,					__SCREAMING_SNAKE_CASE=16      ,					__SCREAMING_SNAKE_CASE=2      ,					__SCREAMING_SNAKE_CASE=0.02      ,					__SCREAMING_SNAKE_CASE=3      ,					__SCREAMING_SNAKE_CASE=4      ,					__SCREAMING_SNAKE_CASE=None      ,					__SCREAMING_SNAKE_CASE=0      ,					) ->					str:



            '''simple docstring'''




            __snake_case         =					parent
            __snake_case         =					batch_size
            __snake_case         =					seq_length
            __snake_case         =					is_training
            __snake_case         =					use_input_mask
            __snake_case         =					use_token_type_ids
            __snake_case         =					use_labels
            __snake_case         =					vocab_size
            __snake_case         =					hidden_size
            __snake_case         =					num_hidden_layers
            __snake_case         =					num_attention_heads
            __snake_case         =					intermediate_size
            __snake_case         =					hidden_act
            __snake_case         =					hidden_dropout_prob
            __snake_case         =					attention_probs_dropout_prob
            __snake_case         =					max_position_embeddings
            __snake_case         =					type_vocab_size
            __snake_case         =					type_sequence_label_size
            __snake_case         =					initializer_range
            __snake_case         =					num_labels
            __snake_case         =					num_choices
            __snake_case         =					scope
            __snake_case         =					projection_dim


       def  lowerCAmelCase (				self					) ->					List[str]:



            '''simple docstring'''




            __snake_case         =					ids_tensor([self.batch_size, self.seq_length]      ,					self.vocab_size					)

            __snake_case         =					None
            if self.use_input_mask:
                 __snake_case         =					random_attention_mask([self.batch_size, self.seq_length]					)

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

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

            __snake_case         =					self.get_config()

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


       def  lowerCAmelCase (				self					) ->					Union[str, Any]:



            '''simple docstring'''




            return DPRConfig(
                projection_dim=self.projection_dim      ,					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  lowerCAmelCase (				self      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE					) ->					Any:



            '''simple docstring'''




            __snake_case         =					DPRContextEncoder(config=__SCREAMING_SNAKE_CASE					)
            model.to(__SCREAMING_SNAKE_CASE					)
            model.eval()
            __snake_case         =					model(__SCREAMING_SNAKE_CASE      ,					attention_mask=__SCREAMING_SNAKE_CASE      ,					token_type_ids=__SCREAMING_SNAKE_CASE					)
            __snake_case         =					model(__SCREAMING_SNAKE_CASE      ,					token_type_ids=__SCREAMING_SNAKE_CASE					)
            __snake_case         =					model(__SCREAMING_SNAKE_CASE					)
            self.parent.assertEqual(result.pooler_output.shape      ,					(self.batch_size, self.projection_dim or self.hidden_size)					)


       def  lowerCAmelCase (				self      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE					) ->					Any:



            '''simple docstring'''




            __snake_case         =					DPRQuestionEncoder(config=__SCREAMING_SNAKE_CASE					)
            model.to(__SCREAMING_SNAKE_CASE					)
            model.eval()
            __snake_case         =					model(__SCREAMING_SNAKE_CASE      ,					attention_mask=__SCREAMING_SNAKE_CASE      ,					token_type_ids=__SCREAMING_SNAKE_CASE					)
            __snake_case         =					model(__SCREAMING_SNAKE_CASE      ,					token_type_ids=__SCREAMING_SNAKE_CASE					)
            __snake_case         =					model(__SCREAMING_SNAKE_CASE					)
            self.parent.assertEqual(result.pooler_output.shape      ,					(self.batch_size, self.projection_dim or self.hidden_size)					)


       def  lowerCAmelCase (				self      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE      ,					__SCREAMING_SNAKE_CASE					) ->					Tuple:



            '''simple docstring'''




            __snake_case         =					DPRReader(config=__SCREAMING_SNAKE_CASE					)
            model.to(__SCREAMING_SNAKE_CASE					)
            model.eval()
            __snake_case         =					model(
                __SCREAMING_SNAKE_CASE      ,					attention_mask=__SCREAMING_SNAKE_CASE      ,					)

            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)					)
            self.parent.assertEqual(result.relevance_logits.shape      ,					(self.batch_size,)					)




       def  lowerCAmelCase (				self					) ->					str:



            '''simple docstring'''




            __snake_case         =					self.prepare_config_and_inputs()
            (
                (
                __snake_case
            )   ,      (
                __snake_case
            )   ,      (
                __snake_case
            )   ,      (
                __snake_case
            )   ,      (
                __snake_case
            )   ,      (
                __snake_case
            )   ,      (
                __snake_case
            )   ,      
            )         =					config_and_inputs
            __snake_case         =					{'''input_ids''': input_ids}
            return config, inputs_dict





@require_torch
class       lowerCAmelCase				(	__lowerCAmelCase			,				__lowerCAmelCase			,				unittest.TestCase):
       __lowercase					: Optional[int]	    =     (
           (
               DPRContextEncoder,
               DPRQuestionEncoder,
               DPRReader,
           )
           if is_torch_available()
           else ()
       )
       __lowercase					: Optional[Any]	    =     {'''feature-extraction''': DPRQuestionEncoder} if is_torch_available() else {}

       __lowercase					: Optional[Any]	    =     False
       __lowercase					: List[str]	    =     False  # why?
       __lowercase					: Optional[Any]	    =     False
       __lowercase					: Dict	    =     False


       def  lowerCAmelCase (				self					) ->					Tuple:



            '''simple docstring'''




            __snake_case         =					DPRModelTester(self					)
            __snake_case         =					ConfigTester(self      ,					config_class=__SCREAMING_SNAKE_CASE      ,					hidden_size=37					)


       def  lowerCAmelCase (				self					) ->					Union[str, Any]:



            '''simple docstring'''




            self.config_tester.run_common_tests()


       def  lowerCAmelCase (				self					) ->					Union[str, Any]:



            '''simple docstring'''




            __snake_case         =					self.model_tester.prepare_config_and_inputs()
            self.model_tester.create_and_check_context_encoder(*__SCREAMING_SNAKE_CASE					)


       def  lowerCAmelCase (				self					) ->					str:



            '''simple docstring'''




            __snake_case         =					self.model_tester.prepare_config_and_inputs()
            self.model_tester.create_and_check_question_encoder(*__SCREAMING_SNAKE_CASE					)


       def  lowerCAmelCase (				self					) ->					Union[str, Any]:



            '''simple docstring'''




            __snake_case         =					self.model_tester.prepare_config_and_inputs()
            self.model_tester.create_and_check_reader(*__SCREAMING_SNAKE_CASE					)


       def  lowerCAmelCase (				self					) ->					Any:



            '''simple docstring'''




            __snake_case         =					self.model_tester.prepare_config_and_inputs()[0]

            __snake_case         =					DPRQuestionEncoder(config=__SCREAMING_SNAKE_CASE					)
            model.to(__SCREAMING_SNAKE_CASE					)
            model.eval()

            with tempfile.TemporaryDirectory() as tmp_dirname:
                 model.save_pretrained(__SCREAMING_SNAKE_CASE					)
                 __snake_case         =					DPRQuestionEncoder.from_pretrained(__SCREAMING_SNAKE_CASE      ,					projection_dim=512					)

            self.assertIsNotNone(__SCREAMING_SNAKE_CASE					)




       @slow
       def  lowerCAmelCase (				self					) ->					Tuple:



            '''simple docstring'''




            for model_name in DPR_CONTEXT_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST[:1]:
                 __snake_case         =					DPRContextEncoder.from_pretrained(__SCREAMING_SNAKE_CASE					)
                 self.assertIsNotNone(__SCREAMING_SNAKE_CASE					)

            for model_name in DPR_CONTEXT_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST[:1]:
                 __snake_case         =					DPRContextEncoder.from_pretrained(__SCREAMING_SNAKE_CASE					)
                 self.assertIsNotNone(__SCREAMING_SNAKE_CASE					)

            for model_name in DPR_QUESTION_ENCODER_PRETRAINED_MODEL_ARCHIVE_LIST[:1]:
                 __snake_case         =					DPRQuestionEncoder.from_pretrained(__SCREAMING_SNAKE_CASE					)
                 self.assertIsNotNone(__SCREAMING_SNAKE_CASE					)

            for model_name in DPR_READER_PRETRAINED_MODEL_ARCHIVE_LIST[:1]:
                 __snake_case         =					DPRReader.from_pretrained(__SCREAMING_SNAKE_CASE					)
                 self.assertIsNotNone(__SCREAMING_SNAKE_CASE					)





@require_torch
class       lowerCAmelCase				(	unittest.TestCase):


       @slow
       def  lowerCAmelCase (				self					) ->					List[Any]:



            '''simple docstring'''




            __snake_case         =					DPRQuestionEncoder.from_pretrained('''facebook/dpr-question_encoder-single-nq-base'''      ,					return_dict=__SCREAMING_SNAKE_CASE					)
            model.to(__SCREAMING_SNAKE_CASE					)

            __snake_case         =					torch.tensor(
                [[101, 7592, 1010, 2003, 2026, 3899, 1_0140, 1029, 102]]      ,					dtype=torch.long      ,					device=__SCREAMING_SNAKE_CASE					)  # [CLS] hello, is my dog cute? [SEP]
            __snake_case         =					model(__SCREAMING_SNAKE_CASE					)[0]  # embedding shape = (1, 768)
            # compare the actual values for a slice.
            __snake_case         =					torch.tensor(
                [
                    [
                        0.03_236_253,
                        0.12_753_335,
                        0.16_818_509,
                        0.00_279_786,
                        0.3_896_933,
                        0.24_264_945,
                        0.2_178_971,
                        -0.02_335_227,
                        -0.08_481_959,
                        -0.14_324_117,
                    ]
                ]      ,					dtype=torch.float      ,					device=__SCREAMING_SNAKE_CASE      ,					)
            self.assertTrue(torch.allclose(output[:, :10]      ,					__SCREAMING_SNAKE_CASE      ,					atol=1E-4					)					)




       @slow
       def  lowerCAmelCase (				self					) ->					Any:



            '''simple docstring'''




            __snake_case         =					DPRReaderTokenizer.from_pretrained('''facebook/dpr-reader-single-nq-base'''					)
            __snake_case         =					DPRReader.from_pretrained('''facebook/dpr-reader-single-nq-base'''					)
            model.to(__SCREAMING_SNAKE_CASE					)

            __snake_case         =					tokenizer(
                questions='''What is love ?'''      ,					titles='''Haddaway'''      ,					texts='''What Is Love is a song recorded by the artist Haddaway'''      ,					padding=__SCREAMING_SNAKE_CASE      ,					return_tensors='''pt'''      ,					)
            encoded_inputs.to(__SCREAMING_SNAKE_CASE					)

            __snake_case         =					model(**__SCREAMING_SNAKE_CASE					)

            # compare the actual values for a slice.
            __snake_case         =					torch.tensor(
                [[-10.3_005, -10.7_765, -11.4_872, -11.6_841, -11.9_312, -10.3_002, -9.8_544, -11.7_378, -12.0_821, -10.2_975]]      ,					dtype=torch.float      ,					device=__SCREAMING_SNAKE_CASE      ,					)

            __snake_case         =					torch.tensor(
                [[-11.0_684, -11.7_041, -11.5_397, -10.3_465, -10.8_791, -6.8_443, -11.9_959, -11.0_364, -10.0_096, -6.8_405]]      ,					dtype=torch.float      ,					device=__SCREAMING_SNAKE_CASE      ,					)
            self.assertTrue(torch.allclose(outputs.start_logits[:, :10]      ,					__SCREAMING_SNAKE_CASE      ,					atol=1E-4					)					)
            self.assertTrue(torch.allclose(outputs.end_logits[:, :10]      ,					__SCREAMING_SNAKE_CASE      ,					atol=1E-4					)					)






