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Z^ rJc|jSrf)rr{s rHget_input_embeddingsz*TFMobileBertMainLayer.get_input_embeddingss rJc`||j_t|d|j_yri)rrrrr~s rHset_input_embeddingsz*TFMobileBertMainLayer.set_input_embeddingss$!&%/%6q%9"rJct)z Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base class PreTrainedModel r)r=heads_to_prunes rH _prune_headsz"TFMobileBertMainLayer._prune_headss "!rJc `| | td| t|} n|t|dd} n td|tj| d}|tj| d}|j ||||| } tj || ddd| df} tj | | j} tjd| j}tjd | j}tjtj|| |} |tdg|jz}|j| | |||| | }|d}|j|j|nd}| s ||f|ddzSt|||j |j" S) NzDYou cannot specify both input_ids and inputs_embeds at the same timerz5You have to specify either input_ids or inputs_embedsr$rrr0g?g)rY pooler_outputrhrZ)rrr7rrr<r:r1rGmultiplysubtractrrSrrrrhrZ)r=rrrrrrrrRr\rrrembedding_outputextended_attention_maskone_cstten_thousand_cstencoder_outputsrrks rHrizTFMobileBertMainLayer.calls  ]%>cd d  "$Y/K  &$]3CR8KTU U  !WW[!4N  !WW[!4N??9lNTalt?u#%**^k!naQRT_`aTb=c"d#%''*AIYI_I_"`++c)9)?)?@;;x7G7M7MN"$++bkk'CZ.[]m"n  % %!7!77I,,  #   ' *!,8< 8O O4UY  #$ $ ,-')77&11   rJc|jryd|_t|ddMtj|jj 5|jj ddddt|ddMtj|jj 5|jj ddddt|ddNtj|jj 5|jj ddddyy#1swYxYw#1swYqxYw#1swYyxYw)NTrrr) rlrmr7rnrrWrorrrqs rHrozTFMobileBertMainLayer.builds ::  4t , 8t334 ,%%d+ , 4D ) 5t||001 ) ""4( ) 44 ( 4t{{//0 ( !!$' ( ( 5  , , ) ) ( ($ D%%D1?D=%D.1D:=E)T NNNNNNNNNFrf) rMrNrOr% config_classrYrrrrrirorurvs@rHrrsY#L _:"!Q Q f (rJrceZdZdZeZdZy)TFMobileBertPreTrainedModelz An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models. mobilebertN)rMrNrOrPr%rbase_model_prefixrQrJrHrrs $L$rJrcXeZdZUdZdZded<dZded<dZded<dZded<dZ ded <y) TFMobileBertForPreTrainingOutputaE Output type of [`TFMobileBertForPreTraining`]. Args: prediction_logits (`tf.Tensor` of shape `(batch_size, sequence_length, config.vocab_size)`): Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax). seq_relationship_logits (`tf.Tensor` of shape `(batch_size, 2)`): Prediction scores of the next sequence prediction (classification) head (scores of True/False continuation before SoftMax). hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): Tuple of `tf.Tensor` (one for the output of the embeddings + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the model at the output of each layer plus the initial embedding outputs. attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, sequence_length)`. Attentions weights after the attention softmax, used to compute the weighted average in the self-attention heads. Nztf.Tensor | Nonelossprediction_logitsseq_relationship_logitsztuple[tf.Tensor] | NonerhrZ) rMrNrOrPr__annotations__rrrhrZrQrJrHrrsB,"D !*.'.04-4-1M*1*.J'.rJra This model inherits from [`TFPreTrainedModel`]. 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 [keras.Model](https://www.tensorflow.org/api_docs/python/tf/keras/Model) subclass. Use it as a regular TF 2.0 Keras Model and refer to the TF 2.0 documentation for all matter related to general usage and behavior. TensorFlow models and layers in `transformers` accept two formats as input: - having all inputs as keyword arguments (like PyTorch models), or - having all inputs as a list, tuple or dict in the first positional argument. The reason the second format is supported is that Keras methods prefer this format when passing inputs to models and layers. Because of this support, when using methods like `model.fit()` things should "just work" for you - just pass your inputs and labels in any format that `model.fit()` supports! If, however, you want to use the second format outside of Keras methods like `fit()` and `predict()`, such as when creating your own layers or models with the Keras `Functional` API, there are three possibilities you can use to gather all the input Tensors in the first positional argument: - a single Tensor with `input_ids` only and nothing else: `model(input_ids)` - a list of varying length with one or several input Tensors IN THE ORDER given in the docstring: `model([input_ids, attention_mask])` or `model([input_ids, attention_mask, token_type_ids])` - a dictionary with one or several input Tensors associated to the input names given in the docstring: `model({"input_ids": input_ids, "token_type_ids": token_type_ids})` Note that when creating models and layers with [subclassing](https://keras.io/guides/making_new_layers_and_models_via_subclassing/) then you don't need to worry about any of this, as you can just pass inputs like you would to any other Python function! Parameters: config ([`MobileBertConfig`]): 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. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. a Args: input_ids (`Numpy array` or `tf.Tensor` of shape `({0})`): Indices of input sequence tokens in the vocabulary. Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.__call__`] and [`PreTrainedTokenizer.encode`] for details. [What are input IDs?](../glossary#input-ids) attention_mask (`Numpy array` or `tf.Tensor` of shape `({0})`, *optional*): 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 (`Numpy array` or `tf.Tensor` of shape `({0})`, *optional*): 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) position_ids (`Numpy array` or `tf.Tensor` of shape `({0})`, *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) head_mask (`Numpy array` or `tf.Tensor` 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 (`tf.Tensor` of shape `({0}, hidden_size)`, *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. output_attentions (`bool`, *optional*): Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned tensors for more detail. This argument can be used only in eager mode, in graph mode the value in the config will be used instead. 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. This argument can be used only in eager mode, in graph mode the value in the config will be used instead. return_dict (`bool`, *optional*): Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. This argument can be used in eager mode, in graph mode the value will always be set to True. training (`bool`, *optional*, defaults to `False`): Whether or not to use the model in training mode (some modules like dropout modules have different behaviors between training and evaluation). zdThe bare MobileBert Model transformer outputting raw hidden-states without any specific head on top.ceZdZfdZeeejdee e e  d ddZ ddZ xZS) TFMobileBertModelcPt||g|i|t|d|_y)NrrV)rXrYrrr=rarrcrds rHrYzTFMobileBertModel.__init__s( 3&3F3/\JrJbatch_size, sequence_length checkpoint output_typerc <|j||||||||| |  } | S)N) rrrrrrrrRr\r)r) r=rrrrrrrrRr\rrs rHrizTFMobileBertModel.calls<(//))%'/!5#"  rJc|jryd|_t|ddNtj|jj 5|jj ddddyy#1swYyxYw)NTr)rlrmr7rnrrWrorqs rHrozTFMobileBertModel.buildsi ::  4t , 8t334 ,%%d+ , , 9 , ,rr)rTFModelInputType | Nonernp.ndarray | tf.Tensor | Nonerrrrrrrrr bool | NonerRrr\rrrrLz$tuple | TFBaseModelOutputWithPoolingrf)rMrNrOrYrr!MOBILEBERT_INPUTS_DOCSTRINGformatr_CHECKPOINT_FOR_DOCr_CONFIG_FOR_DOCrirorurvs@rHrrs K*+F+M+MNk+lm&0$.28<8<6:377;)-,0#' %*66  4  1 5'*! . n8,rJrz MobileBert Model with two heads on top as done during the pretraining: a `masked language modeling` head and a `next sentence prediction (classification)` head. ceZdZfdZdZdZeeejde e e  d d dZ d dZdZxZS) TFMobileBertForPreTrainingct||g|i|t|d|_t |d|_t |d|_y)NrrVpredictions___clsseq_relationship___cls)rXrYrrrrTFMobileBertOnlyNSPHeadseq_relationshiprs rHrYz#TFMobileBertForPreTraining.__init__sH 3&3F3/\J.v>> import tensorflow as tf >>> from transformers import AutoTokenizer, TFMobileBertForPreTraining >>> tokenizer = AutoTokenizer.from_pretrained("google/mobilebert-uncased") >>> model = TFMobileBertForPreTraining.from_pretrained("google/mobilebert-uncased") >>> input_ids = tf.constant(tokenizer.encode("Hello, my dog is cute"))[None, :] # Batch size 1 >>> outputs = model(input_ids) >>> prediction_scores, seq_relationship_scores = outputs[:2] ``` rrrrrrrRr\rNrr-r2r-r>)rrrrhrZ)rrrrIrrhrZ)r=rrrrrrrrRr\r-r2rrrrkrseq_relationship_score total_lossd_labelsrs rHrizTFMobileBertForPreTraining.callsB// ))%'/!5#"  *1!& ,,_=!%!6!6}!E  "5"A &)H.AH* +--XGXZpFq-rJ')?@712;NF/9/EZMF* Q6 Q//$:!//))   rJc|jryd|_t|ddMtj|jj 5|jj ddddt|ddMtj|jj 5|jj ddddt|ddNtj|jj 5|jj ddddyy#1swYxYw#1swYqxYw#1swYyxYw)NTrrr) rlrmr7rnrrWrorrrqs rHroz TFMobileBertForPreTraining.builds  ::  4t , 8t334 ,%%d+ , 4 - 9t//445 -  &&t, - 4+T 2 >t4499: 2%%++D1 2 2 ?  , , - - 2 2rc|dk(r|dfS|fSNzcls.predictions.decoder.weightz,mobilebert.embeddings.word_embeddings.weightrQr= tf_weights rHtf_to_pt_weight_renamez1TFMobileBertForPreTraining.tf_to_pt_weight_rename- 8 8LL L< rJ NNNNNNNNNNNF)rrrrrrrrrrrrrrrRrr\rr-rr2rrrrLz(tuple | TFMobileBertForPreTrainingOutputrf)rMrNrOrYrrrr!rrr#rrrirorrurvs@rHrrs_ ,a*+F+M+MNk+lm+KZij.28<8<6:377;)-,0#'04=A %? *? 6? 6 ? 4 ? 1 ? 5? '? *? !? .? ;? ?  2? kn? B 2 rJrz8MobileBert Model with a `language modeling` head on top.c eZdZgdZfdZdZdZeee jde e e edd d d d Zdd Zd ZxZS)TFMobileBertForMaskedLM)rrcls.seq_relationshipcvt||g|i|t|dd|_t |d|_y)NFrrrWrrV)rXrYrrrrrs rHrYz TFMobileBertForMaskedLM.__init__=s; 3&3F3/%Vbc.vrhrZ)rrrIr rhrZ)r=rrrrrrrrRr\r-rrrrrrs rHrizTFMobileBertForMaskedLM.callJs:// ))%'/!5#"  "!* ,,_x,P~t4+?+?HY+Z')GABK7F)-)9TGf$ Ev E$!//))   rJc|jryd|_t|ddMtj|jj 5|jj ddddt|ddNtj|jj 5|jj ddddyy#1swYexYw#1swYyxYw)NTrr)rlrmr7rnrrWrorrqs rHrozTFMobileBertForMaskedLM.builds ::  4t , 8t334 ,%%d+ , 4 - 9t//445 -  &&t, - - : , , - -r c|dk(r|dfS|fSrrQrs rHrz.TFMobileBertForMaskedLM.tf_to_pt_weight_renamerrJ NNNNNNNNNNF)rrrrrrrrrrrrrrrRrr\rr-rrrrLztuple | TFMaskedLMOutputrf)rMrNrO"_keys_to_ignore_on_load_unexpectedrYrrrr!rrrrr rrirorrurvs@rHrr4s *& Q ,Q*+F+M+MNk+lm&$$! .28<8<6:377;)-,0#'04 %. *. 6. 6 . 4 . 1 . 5. '. *. !. .. .  ". n. ` - rJrc,eZdZfdZdZddZxZS)rc ~t|di|tjj dd|_||_y)NrrrVrQ)rXrYrrZr[rrarbs rHrYz TFMobileBertOnlyNSPHead.__init__s7 "6" % 2 21;M 2 N rJc(|j|}|Srf)r)r=rkrs rHrizTFMobileBertOnlyNSPHead.calls!%!6!6}!E%%rJc(|jryd|_t|ddetj|jj 5|jj dd|jjgdddyy#1swYyxYw)NTr) rlrmr7rnrrWrorarrqs rHrozTFMobileBertOnlyNSPHead.builds ::  4+T 2 >t4499: S%%++T49P9P,QR S S ? S Srsrfrtrvs@rHrrs &SrJrzPMobileBert Model with a `next sentence prediction (classification)` head on top.ceZdZddgZfdZeeejde e e  d d dZ d dZ xZS) %TFMobileBertForNextSentencePredictionrcls.predictionsctt||g|i|t|d|_t |d|_y)NrrVr)rXrYrrrclsrs rHrYz.TFMobileBertForNextSentencePrediction.__init__s7 3&3F3/\J*68PQrJrrc |j||||||||| |  } | d} |j| }| dn|j| |}| s|f| ddz}||f|zS|St||| j| j S)a Return: Examples: ```python >>> import tensorflow as tf >>> from transformers import AutoTokenizer, TFMobileBertForNextSentencePrediction >>> tokenizer = AutoTokenizer.from_pretrained("google/mobilebert-uncased") >>> model = TFMobileBertForNextSentencePrediction.from_pretrained("google/mobilebert-uncased") >>> prompt = "In Italy, pizza served in formal settings, such as at a restaurant, is presented unsliced." >>> next_sentence = "The sky is blue due to the shorter wavelength of blue light." >>> encoding = tokenizer(prompt, next_sentence, return_tensors="tf") >>> logits = model(encoding["input_ids"], token_type_ids=encoding["token_type_ids"])[0] ```rr$Nrrr)rrrIr rhrZ)r=rrrrrrrrRr\r2rrrkseq_relationship_scoresnext_sentence_lossrs rHriz*TFMobileBertForNextSentencePrediction.callsF// ))%'/!5#"    "&((="9#* %%-@I`%a  -/'!"+=F7I7U')F2 a[a a,#*!//))   rJc|jryd|_t|ddMtj|jj 5|jj ddddt|ddNtj|jj 5|jj ddddyy#1swYexYw#1swYyxYw)NTrr)rlrmr7rnrrWrorrqs rHroz+TFMobileBertForNextSentencePrediction.builds ::  4t , 8t334 ,%%d+ , 4 % 1txx}}- %t$ % % 2 , , % %r r)rrrrrrrrrrrrrrrRrr\rr2rrrrLz%tuple | TFNextSentencePredictorOutputrf)rMrNrOrrYrr!rrr#r rrirorurvs@rHrrs +?@R)S&R *+F+M+MNk+lm+HWfg.28<8<6:377;)-,0#'=A %> *> 6> 6 > 4 > 1 > 5> '> *> !> ;> >  /> hn> @ %rJrz MobileBert Model transformer with a sequence classification/regression head on top (a linear layer on top of the pooled output) e.g. for GLUE tasks. c eZdZgdZdgZfdZeeejde e e e ee d d dZd dZxZS) %TFMobileBertForSequenceClassificationrrrrrct||g|i||j|_t|d|_|j |j n |j }tjj||_ tjj|jt|jd|_||_y)NrrV classifierrrXrY num_labelsrrclassifier_dropoutrrrZrrr[rrrrar=rarrcr rds rHrYz.TFMobileBertForSequenceClassification.__init__s 3&3F3 ++/\J)/)B)B)NF % %TZTnTn ||++,>? ,,,,   /&BZBZ2[bn-  rJrrc &|j||||||||| |  } | d} |j| | } |j| }| dn|j| |}| s|f| ddz}||f|zS|St ||| j | j S)a labels (`tf.Tensor` of shape `(batch_size,)`, *optional*): Labels for computing the sequence classification/regression loss. Indices should be in `[0, ..., config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If `config.num_labels > 1` a classification loss is computed (Cross-Entropy). rr$rNrr)rrrrIr rhrZ)r=rrrrrrrrRr\r-rrrkr>rrs rHriz*TFMobileBertForSequenceClassification.call$s:// ))%'/!5#"     ]X F /~t4+?+?+OY,F)-)9TGf$ Ev E)!//))   rJc|jryd|_t|ddMtj|jj 5|jj ddddt|ddetj|jj 5|jj dd|jjgdddyy#1swY|xYw#1swYyxYwNTrr rlrmr7rnrrWrorrarrqs rHroz+TFMobileBertForSequenceClassification.build_ ::  4t , 8t334 ,%%d+ , 4t , 8t334 M%%tT4;;3J3J&KL M M 9 , , M M C"%3C."C+.C7r)rrrrrrrrrrrrrrrRrr\rr-rrrrLz"tuple | TFSequenceClassifierOutputrf)rMrNrOr_keys_to_ignore_on_load_missingrYrr!rrr'_CHECKPOINT_FOR_SEQUENCE_CLASSIFICATIONr r_SEQ_CLASS_EXPECTED_OUTPUT_SEQ_CLASS_EXPECTED_LOSSrirorurvs@rHrrs*& (2l# *+F+M+MNk+lm:.$2. .28<8<6:377;)-,0#'04 %0 *0 60 6 0 4 0 1 0 50 '0 *0 !0 .0 0  ,0 n0 d MrJrz MobileBert Model with a span classification head on top for extractive question-answering tasks like SQuAD (a linear layers on top of the hidden-states output to compute `span start logits` and `span end logits`). c eZdZgdZfdZeeejde e e e e eee d ddZd dZxZS) TFMobileBertForQuestionAnsweringrrrrrc t||g|i||j|_t|dd|_t j j|jt|jd|_ ||_ y)NFrr qa_outputsr) rXrYr rrrrZr[rrrrars rHrYz)TFMobileBertForQuestionAnswering.__init__|su 3&3F3 ++/%Vbc,,,,   /&BZBZ2[bn-  rJr)rrrqa_target_start_indexqa_target_end_indexrrc |j||||||||| |  } | d}|j|}tj|dd\}}tj|d}tj|d}d}| | | | d}|j |||f}| s||f| ddz}||f|zS|St |||| j| jS) a start_positions (`tf.Tensor` of shape `(batch_size,)`, *optional*): Labels for position (index) of the start of the labelled span for computing the token classification loss. Positions are clamped to the length of the sequence (`sequence_length`). Position outside of the sequence are not taken into account for computing the loss. end_positions (`tf.Tensor` of shape `(batch_size,)`, *optional*): Labels for position (index) of the end of the labelled span for computing the token classification loss. Positions are clamped to the length of the sequence (`sequence_length`). Position outside of the sequence are not taken into account for computing the loss. rrrrrN)start_position end_position)r start_logits end_logitsrhrZ) rrr7splitsqueezerIr rhrZ)r=rrrrrrrrRr\start_positions end_positionsrrrr>r r!rr-rs rHriz%TFMobileBertForQuestionAnswering.callsH// ))%'/!5#"  "!*1#%88FAB#? jzz,R8 ZZ 4   &=+D(7WF''z0JKD"J/'!"+=F)-)9TGf$ Ev E-%!!//))   rJc|jryd|_t|ddMtj|jj 5|jj ddddt|ddetj|jj 5|jj dd|jjgdddyy#1swY|xYw#1swYyxYw)NTrr) rlrmr7rnrrWrorrarrqs rHroz&TFMobileBertForQuestionAnswering.buildrrr)rrrrrrrrrrrrrrrRrr\rr$rr%rrrrLz&tuple | TFQuestionAnsweringModelOutputrf)rMrNrOrrYrr!rrr_CHECKPOINT_FOR_QAr r_QA_TARGET_START_INDEX_QA_TARGET_END_INDEX_QA_EXPECTED_OUTPUT_QA_EXPECTED_LOSSrirorurvs@rHrrks*&*+F+M+MNk+lm%2$40+'.28<8<6:377;)-,0#'9=7; %; *; 6; 6 ; 4 ; 1 ; 5; '; *; !; 7; 5; ;  0; n; z MrJrz MobileBert Model with a multiple choice classification head on top (a linear layer on top of the pooled output and a softmax) e.g. for RocStories/SWAG tasks. ceZdZgdZdgZfdZeeejde e e e  d d dZd dZxZS) TFMobileBertForMultipleChoicerrc.t||g|i|t|d|_tj j |j|_tj jdt|jd|_ ||_ y)NrrVr$rr)rXrYrrrrZrrrr[rrrrars rHrYz&TFMobileBertForMultipleChoice.__init__s{ 3&3F3/\J||++F,F,FG ,,,, /&2J2J"KR^-  rJz(batch_size, num_choices, sequence_lengthrc |t|d} t|d} nt|d} t|d} |tj|d| fnd}|tj|d| fnd}|tj|d| fnd}|tj|d| fnd}|%tj|d| t|dfnd}|j||||||||| |  }|d}|j || }|j |}tj|d| f}| dn|j | |}| s|f|ddz}||f|zS|St|||j|jS) a5 labels (`tf.Tensor` of shape `(batch_size,)`, *optional*): Labels for computing the multiple choice classification loss. Indices should be in `[0, ..., num_choices]` where `num_choices` is the size of the second dimension of the input tensors. (See `input_ids` above) Nr$rrr)r\rrr) rr7r<rrrrIr rhrZ)r=rrrrrrrrRr\r-r num_choices seq_lengthflat_input_idsflat_attention_maskflat_token_type_idsflat_position_idsflat_inputs_embedsrrkr>reshaped_logitsrrs rHriz"TFMobileBertForMultipleChoice.calls8  $Y/2K#I.q1J$]3A6K#M215JDMDYIJ/?@_cN\Nhbjj"j9IJnrN\Nhbjj"j9IJnrJVJbBJJ|b*5EFhl( JJ}r:z-7PQR7S&T U  //        #"     ]X F /**Vb+->?~t4+?+?+X%''!"+5F)-)9TGf$ Ev E*"!//))   rJc|jryd|_t|ddMtj|jj 5|jj ddddt|ddetj|jj 5|jj dd|jjgdddyy#1swY|xYw#1swYyxYwrrrqs rHroz#TFMobileBertForMultipleChoice.build?rrr)rrrrrrrrrrrrrrrRrr\rr-rrrrLz#tuple | TFMultipleChoiceModelOutputrf)rMrNrOrrrYrr!rrrrr rrirorurvs@rHr-r-s*& (2l#*#**+UV &/$.28<8<6:377;)-,0#'04 %? *? 6? 6 ? 4 ? 1 ? 5? '? *? !? .? ?  -? ? B MrJr-z MobileBert Model with a token classification head on top (a linear layer on top of the hidden-states output) e.g. for Named-Entity-Recognition (NER) tasks. c eZdZgdZdgZfdZeeejde e e e ee d d dZd dZxZS) "TFMobileBertForTokenClassificationrrct||g|i||j|_t|dd|_|j |j n |j }tjj||_ tjj|jt|jd|_||_y)NFrrrrrr s rHrYz+TFMobileBertForTokenClassification.__init__]s 3&3F3 ++/%Vbc)/)B)B)NF % %TZTnTn ||++,>? ,,,,   /&BZBZ2[bn-  rJrrc &|j||||||||| |  } | d} |j| | } |j| }| dn|j| |}| s|f| ddz}||f|zS|St ||| j | j S)z labels (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*): Labels for computing the token classification loss. Indices should be in `[0, ..., config.num_labels - 1]`. rrrNrr)rrrrIrrhrZ)r=rrrrrrrrRr\r-rrrr>rrs rHriz'TFMobileBertForTokenClassification.callks6// ))%'/!5#"  "!*,,,J1~t4+?+?+OY,F)-)9TGf$ Ev E&!//))   rJc|jryd|_t|ddMtj|jj 5|jj ddddt|ddetj|jj 5|jj dd|jjgdddyy#1swY|xYw#1swYyxYwrrrqs rHroz(TFMobileBertForTokenClassification.buildrrr)rrrrrrrrrrrrrrrRrr\rr-rrrrLztuple | TFTokenClassifierOutputrf)rMrNrOrrrYrr!rrr$_CHECKPOINT_FOR_TOKEN_CLASSIFICATIONrr_TOKEN_CLASS_EXPECTED_OUTPUT_TOKEN_CLASS_EXPECTED_LOSSrirorurvs@rHr:r:Ks*&(2l# *+F+M+MNk+lm7+$40 .28<8<6:377;)-,0#'04 %. *. 6. 6 . 4 . 1 . 5. '. *. !. .. .  ). n. ` MrJr:) rr-rrrrr:rrr)frP __future__rr dataclassesrnumpynp tensorflowr7activations_tfrmodeling_tf_outputsrrr r r r r rmodeling_tf_utilsrrrrrrrrrrrrtf_utilsrrrutilsrrr r!r"r#configuration_mobilebertr% get_loggerrMloggerrrr>r?r@r'r*r+r(r)rrrr)rZLayerrSLayerNormalizationrxrrrrrrrrrr'r3r8r?rPrbrnrtrrrrMOBILEBERT_START_DOCSTRINGrrrrrrrrr-r:__all__rQrJrHrRs "!/       SR7   H %1$(L$l!='+E''!QQ8Mu||11M64%,,114 0u||!! 0% :e U\\//e Pb 2 2bJ+U\\//+B%3ELL..%3P++++8&,++&,R+ **+4,+5<<%%,+^+%,,$$+43##3.N& **N&b1&%,,,,1&hH++H@+%,,*<*<+>.5<<#5#5.b-%,,,,-$~(ELL..~(~(B%"3% /{/ /<(T5pj.,3., .,b d !<>Yd d NTVpq] 9;W] r] @Sell00S&ZV%,GIeV% V%r \M,GIe\M\M~ eM'BD[eMeMP gM$?AUgMgMT [M)DF_[M[M| rJ