from collections import OrderedDict
from typing import Mapping

from packaging import version

from ...configuration_utils import PretrainedConfig
from ...onnx import OnnxConfig
from ...utils import logging


a_    					=       logging.get_logger(__name__)

a_    					=       {
    """google/vit-base-patch16-224""": """https://huggingface.co/vit-base-patch16-224/resolve/main/config.json""",
    # See all ViT models at https://huggingface.co/models?filter=vit
}





class 		_lowercase						(					snake_case_       ):
 lowercase				     =   "vit"

 def __init__( self	:							Tuple   ,      snake_case	:							List[Any]=7_6_8   ,      snake_case	:							Optional[int]=1_2   ,      snake_case	:							str=1_2   ,      snake_case	:							Optional[int]=3_0_7_2   ,      snake_case	:							Union[str, Any]="gelu"   ,      snake_case	:							int=0.0   ,      snake_case	:							str=0.0   ,      snake_case	:							Union[str, Any]=0.02   ,      snake_case	:							List[str]=1e-12   ,      snake_case	:							Optional[Any]=2_2_4   ,      snake_case	:							int=1_6   ,      snake_case	:							List[str]=3   ,      snake_case	:							Optional[Any]=True   ,      snake_case	:							Dict=1_6   ,      **snake_case	:							Optional[int]   ,      )   ->						Union[str, Any]:

  """simple docstring"""





  super().__init__(**snake_case			)

  UpperCamelCase_					:						Union[str, Any] =					hidden_size
  UpperCamelCase_					:						int =					num_hidden_layers
  UpperCamelCase_					:						Optional[int] =					num_attention_heads
  UpperCamelCase_					:						Optional[Any] =					intermediate_size
  UpperCamelCase_					:						str =					hidden_act
  UpperCamelCase_					:						Tuple =					hidden_dropout_prob
  UpperCamelCase_					:						Dict =					attention_probs_dropout_prob
  UpperCamelCase_					:						Tuple =					initializer_range
  UpperCamelCase_					:						int =					layer_norm_eps
  UpperCamelCase_					:						Optional[Any] =					image_size
  UpperCamelCase_					:						Any =					patch_size
  UpperCamelCase_					:						List[Any] =					num_channels
  UpperCamelCase_					:						Dict =					qkv_bias
  UpperCamelCase_					:						List[Any] =					encoder_stride





class 		_lowercase						(					snake_case_       ):
 lowercase				     =   version.parse('1.11'       )

 @property
 def 						SCREAMING_SNAKE_CASE__   ( self	:							Optional[Any]			)   ->						Any:

  """simple docstring"""





  return OrderedDict(
      [
          ('pixel_values', {0: 'batch', 1: 'num_channels', 2: 'height', 3: 'width'}),
      ]			)


 @property
 def 						SCREAMING_SNAKE_CASE__   ( self	:							Any			)   ->						Optional[int]:

  """simple docstring"""





  return 1e-4





import json
import os
from dataclasses import dataclass
from functools import partial
from typing import Callable

import flax.linen as nn
import jax
import jax.numpy as jnp
import joblib
import optax
import wandb
from flax import jax_utils, struct, traverse_util
from flax.serialization import from_bytes, to_bytes
from flax.training import train_state
from flax.training.common_utils import shard
from tqdm.auto import tqdm

from transformers import BigBirdConfig, FlaxBigBirdForQuestionAnswering
from transformers.models.big_bird.modeling_flax_big_bird import FlaxBigBirdForQuestionAnsweringModule

class __snake_case		(      lowerCAmelCase     ):
    _a		:						BigBirdConfig
    _a		:						jnp.dtype=				jnp.floataa
    _a		:						bool=				True
    def       _SCREAMING_SNAKE_CASE       (  self      ):



           '''simple docstring'''







           super().setup()
           lowercase							:     List[str]       	=      nn.Dense(5		,dtype=self.dtype      )
    def __call__(  self		,*snake_case		,**snake_case      ):



           '''simple docstring'''







           lowercase							:     int       	=      super().__call__(*snake_case		,**snake_case      )
           lowercase							:     Any       	=      self.cls(outputs[2]      )
           return outputs[:2] + (cls_out,)






class __snake_case		(      lowerCAmelCase     ):
    _a		:						List[Any]=				FlaxBigBirdForNaturalQuestionsModule







def 						_snake_case(  SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__				) ->    List[str]:
       def cross_entropy(SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__=None				):
              lowercase							:     int       	=      logits.shape[-1]
              lowercase							:     Dict       	=      (labels[..., None] == jnp.arange(SCREAMING_SNAKE_CASE__				)[None]).astype("""f4"""				)
              lowercase							:     Any       	=      jax.nn.log_softmax(SCREAMING_SNAKE_CASE__					,	axis=-1				)
              lowercase							:     Optional[Any]       	=      -jnp.sum(labels * logits					,	axis=-1				)
              if reduction is not None:
                     lowercase							:     Any       	=      reduction(SCREAMING_SNAKE_CASE__				)
              return loss

       lowercase							:     Optional[Any]       	=      partial(SCREAMING_SNAKE_CASE__					,	reduction=jnp.mean				)
       lowercase							:     Optional[int]       	=      cross_entropy(SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__				)
       lowercase							:     Dict       	=      cross_entropy(SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__				)
       lowercase							:     int       	=      cross_entropy(SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__				)
       return (start_loss + end_loss + pooled_loss) / 3

@dataclass
class __snake_case		:
    _a		:						str=				"google/bigbird-roberta-base"
    _a		:						int=				3000
    _a		:						int=				1_0500

    _a		:						int=				128
    _a		:						int=				3

    _a		:						int=				1
    _a		:						int=				5

    # tx_args
    _a		:						float=				3E-5
    _a		:						float=				0.0
    _a		:						int=				2_0000
    _a		:						float=				0.00_95

    _a		:						str=				"bigbird-roberta-natural-questions"
    _a		:						str=				"training-expt"
    _a		:						str=				"data/nq-training.jsonl"
    _a		:						str=				"data/nq-validation.jsonl"
    def       _SCREAMING_SNAKE_CASE       (  self      ):



           '''simple docstring'''







           os.makedirs(self.base_dir		,exist_ok=snake_case      )
           lowercase							:     Optional[int]       	=      os.path.join(self.base_dir		,self.save_dir      )
           lowercase							:     Optional[int]       	=      self.batch_size_per_device * jax.device_count()






@dataclass
class __snake_case		:
    _a		:						int
    _a		:						int=				4096  # no dynamic padding on TPUs
    def __call__(  self		,snake_case      ):



           '''simple docstring'''







           lowercase							:     int       	=      self.collate_fn(snake_case      )
           lowercase							:     Union[str, Any]       	=      jax.tree_util.tree_map(snake_case		,snake_case      )
           return batch
    def       _SCREAMING_SNAKE_CASE       (  self		,snake_case      ):



           '''simple docstring'''







           lowercase	,			lowercase							:     Union[str, Any]       	=      self.fetch_inputs(features["""input_ids"""]      )
           lowercase							:     Tuple       	=      {
               """input_ids""": jnp.array(snake_case		,dtype=jnp.intaa      ),
               """attention_mask""": jnp.array(snake_case		,dtype=jnp.intaa      ),
               """start_labels""": jnp.array(features["""start_token"""]		,dtype=jnp.intaa      ),
               """end_labels""": jnp.array(features["""end_token"""]		,dtype=jnp.intaa      ),
               """pooled_labels""": jnp.array(features["""category"""]		,dtype=jnp.intaa      ),
           }
           return batch
    def       _SCREAMING_SNAKE_CASE       (  self		,snake_case      ):



           '''simple docstring'''







           lowercase							:     Tuple       	=      [self._fetch_inputs(snake_case      ) for ids in input_ids]
           return zip(*snake_case      )
    def       _SCREAMING_SNAKE_CASE       (  self		,snake_case      ):



           '''simple docstring'''







           lowercase							:     Union[str, Any]       	=      [1 for _ in range(len(snake_case      )      )]
           while len(snake_case      ) < self.max_length:
                  input_ids.append(self.pad_id      )
                  attention_mask.append(0      )
           return input_ids, attention_mask







def 						_snake_case(  SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__=None				) ->    Any:
       if seed is not None:
              lowercase							:     Optional[int]       	=      dataset.shuffle(seed=SCREAMING_SNAKE_CASE__				)
       for i in range(len(SCREAMING_SNAKE_CASE__				) // batch_size				):
              lowercase							:     Optional[Any]       	=      dataset[i * batch_size : (i + 1) * batch_size]
              yield dict(SCREAMING_SNAKE_CASE__				)







@partial(jax.pmap					,	axis_name="""batch"""				)
def 						_snake_case(  SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	**SCREAMING_SNAKE_CASE__				) ->    List[Any]:
       def loss_fn(SCREAMING_SNAKE_CASE__				):
              lowercase							:     List[str]       	=      model_inputs.pop("""start_labels"""				)
              lowercase							:     Optional[int]       	=      model_inputs.pop("""end_labels"""				)
              lowercase							:     str       	=      model_inputs.pop("""pooled_labels"""				)

              lowercase							:     Union[str, Any]       	=      state.apply_fn(**SCREAMING_SNAKE_CASE__					,	params=SCREAMING_SNAKE_CASE__					,	dropout_rng=SCREAMING_SNAKE_CASE__					,	train=SCREAMING_SNAKE_CASE__				)
              lowercase	,			lowercase	,			lowercase							:     List[str]       	=      outputs

              return state.loss_fn(
                  SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	)

       lowercase	,			lowercase							:     int       	=      jax.random.split(SCREAMING_SNAKE_CASE__				)
       lowercase							:     Dict       	=      jax.value_and_grad(SCREAMING_SNAKE_CASE__				)
       lowercase	,			lowercase							:     Union[str, Any]       	=      grad_fn(state.params				)
       lowercase							:     List[Any]       	=      jax.lax.pmean({"""loss""": loss}					,	axis_name="""batch"""				)
       lowercase							:     List[Any]       	=      jax.lax.pmean(SCREAMING_SNAKE_CASE__					,	"""batch"""				)

       lowercase							:     str       	=      state.apply_gradients(grads=SCREAMING_SNAKE_CASE__				)
       return state, metrics, new_drp_rng







@partial(jax.pmap					,	axis_name="""batch"""				)
def 						_snake_case(  SCREAMING_SNAKE_CASE__					,	**SCREAMING_SNAKE_CASE__				) ->    List[str]:
       lowercase							:     int       	=      model_inputs.pop("""start_labels"""				)
       lowercase							:     Dict       	=      model_inputs.pop("""end_labels"""				)
       lowercase							:     Optional[Any]       	=      model_inputs.pop("""pooled_labels"""				)

       lowercase							:     Optional[int]       	=      state.apply_fn(**SCREAMING_SNAKE_CASE__					,	params=state.params					,	train=SCREAMING_SNAKE_CASE__				)
       lowercase	,			lowercase	,			lowercase							:     List[Any]       	=      outputs

       lowercase							:     Dict       	=      state.loss_fn(SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__				)
       lowercase							:     str       	=      jax.lax.pmean({"""loss""": loss}					,	axis_name="""batch"""				)
       return metrics

class __snake_case		(      train_state.TrainState     ):
    _a		:						Callable=				struct.field(pytree_node=lowerCAmelCase     )






@dataclass
class __snake_case		:
    _a		:						Args
    _a		:						Callable
    _a		:						Callable
    _a		:						Callable
    _a		:						Callable
    _a		:						wandb
    _a		:						Callable=				None
    def       _SCREAMING_SNAKE_CASE       (  self		,snake_case		,snake_case		,snake_case		,snake_case=None      ):



           '''simple docstring'''







           lowercase							:     Tuple       	=      model.params
           lowercase							:     Any       	=      TrainState.create(
               apply_fn=model.__call__		,params=snake_case		,tx=snake_case		,loss_fn=snake_case		,)
           if ckpt_dir is not None:
                  lowercase	,			lowercase	,			lowercase	,			lowercase	,			lowercase							:     Tuple       	=      restore_checkpoint(snake_case		,snake_case      )
                  lowercase							:     List[str]       	=      {
                      """lr""": args.lr,
                      """init_lr""": args.init_lr,
                      """warmup_steps""": args.warmup_steps,
                      """num_train_steps""": num_train_steps,
                      """weight_decay""": args.weight_decay,
                  }
                  lowercase	,			lowercase							:     Tuple       	=      build_tx(**snake_case      )
                  lowercase							:     str       	=      train_state.TrainState(
                      step=snake_case		,apply_fn=model.__call__		,params=snake_case		,tx=snake_case		,opt_state=snake_case		,)
                  lowercase							:     Any       	=      args
                  lowercase							:     Optional[Any]       	=      data_collator
                  lowercase							:     List[str]       	=      lr
                  lowercase							:     str       	=      params
           lowercase							:     Tuple       	=      jax_utils.replicate(snake_case      )
           return state
    def       _SCREAMING_SNAKE_CASE       (  self		,snake_case		,snake_case		,snake_case      ):



           '''simple docstring'''







           lowercase							:     Dict       	=      self.args
           lowercase							:     Optional[Any]       	=      len(snake_case      ) // args.batch_size

           lowercase							:     int       	=      jax.random.PRNGKey(0      )
           lowercase							:     List[str]       	=      jax.random.split(snake_case		,jax.device_count()      )
           for epoch in range(args.max_epochs      ):
                  lowercase							:     List[Any]       	=      jnp.array(0		,dtype=jnp.floataa      )
                  lowercase							:     List[str]       	=      get_batched_dataset(snake_case		,args.batch_size		,seed=snake_case      )
                  lowercase							:     int       	=      0
                  for batch in tqdm(snake_case		,total=snake_case		,desc=f"Running EPOCH-{epoch}"      ):
                         lowercase							:     Dict       	=      self.data_collator(snake_case      )
                         lowercase	,			lowercase	,			lowercase							:     Optional[int]       	=      self.train_step_fn(snake_case		,snake_case		,**snake_case      )
                         running_loss += jax_utils.unreplicate(metrics["""loss"""]      )
                         i += 1
                         if i % args.logging_steps == 0:
                                lowercase							:     Optional[Any]       	=      jax_utils.unreplicate(state.step      )
                                lowercase							:     List[str]       	=      running_loss.item() / i
                                lowercase							:     List[str]       	=      self.scheduler_fn(state_step - 1      )

                                lowercase							:     int       	=      self.evaluate(snake_case		,snake_case      )
                                lowercase							:     Tuple       	=      {
                                    """step""": state_step.item(),
                                    """eval_loss""": eval_loss.item(),
                                    """tr_loss""": tr_loss,
                                    """lr""": lr.item(),
                                }
                                tqdm.write(str(snake_case      )      )
                                self.logger.log(snake_case		,commit=snake_case      )

                         if i % args.save_steps == 0:
                                self.save_checkpoint(args.save_dir + f"-e{epoch}-s{i}"		,state=snake_case      )
    def       _SCREAMING_SNAKE_CASE       (  self		,snake_case		,snake_case      ):



           '''simple docstring'''







           lowercase							:     List[str]       	=      get_batched_dataset(snake_case		,self.args.batch_size      )
           lowercase							:     Any       	=      len(snake_case      ) // self.args.batch_size
           lowercase							:     List[Any]       	=      jnp.array(0		,dtype=jnp.floataa      )
           lowercase							:     Optional[int]       	=      0
           for batch in tqdm(snake_case		,total=snake_case		,desc="""Evaluating ... """      ):
                  lowercase							:     Tuple       	=      self.data_collator(snake_case      )
                  lowercase							:     Optional[int]       	=      self.val_step_fn(snake_case		,**snake_case      )
                  running_loss += jax_utils.unreplicate(metrics["""loss"""]      )
                  i += 1
           return running_loss / i
    def       _SCREAMING_SNAKE_CASE       (  self		,snake_case		,snake_case      ):



           '''simple docstring'''







           lowercase							:     str       	=      jax_utils.unreplicate(snake_case      )
           print(f"SAVING CHECKPOINT IN {save_dir}"		,end=""" ... """      )
           self.model_save_fn(snake_case		,params=state.params      )
           with open(os.path.join(snake_case		,"""opt_state.msgpack"""      )		,"""wb"""      ) as f:
                  f.write(to_bytes(state.opt_state      )      )
           joblib.dump(self.args		,os.path.join(snake_case		,"""args.joblib"""      )      )
           joblib.dump(self.data_collator		,os.path.join(snake_case		,"""data_collator.joblib"""      )      )
           with open(os.path.join(snake_case		,"""training_state.json"""      )		,"""w"""      ) as f:
                  json.dump({"""step""": state.step.item()}		,snake_case      )
           print("""DONE"""      )







def 						_snake_case(  SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__				) ->    Union[str, Any]:
       print(f"RESTORING CHECKPOINT FROM {save_dir}"					,	end=""" ... """				)
       with open(os.path.join(SCREAMING_SNAKE_CASE__					,	"""flax_model.msgpack"""				)					,	"""rb"""				) as f:
              lowercase							:     str       	=      from_bytes(state.params					,	f.read()				)

       with open(os.path.join(SCREAMING_SNAKE_CASE__					,	"""opt_state.msgpack"""				)					,	"""rb"""				) as f:
              lowercase							:     Optional[int]       	=      from_bytes(state.opt_state					,	f.read()				)

       lowercase							:     Optional[Any]       	=      joblib.load(os.path.join(SCREAMING_SNAKE_CASE__					,	"""args.joblib"""				)				)
       lowercase							:     int       	=      joblib.load(os.path.join(SCREAMING_SNAKE_CASE__					,	"""data_collator.joblib"""				)				)

       with open(os.path.join(SCREAMING_SNAKE_CASE__					,	"""training_state.json"""				)					,	"""r"""				) as f:
              lowercase							:     Tuple       	=      json.load(SCREAMING_SNAKE_CASE__				)
       lowercase							:     Tuple       	=      training_state["""step"""]

       print("""DONE"""				)
       return params, opt_state, step, args, data_collator







def 						_snake_case(  SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__				) ->    List[Any]:
       lowercase							:     List[str]       	=      num_train_steps - warmup_steps
       lowercase							:     Dict       	=      optax.linear_schedule(init_value=SCREAMING_SNAKE_CASE__					,	end_value=SCREAMING_SNAKE_CASE__					,	transition_steps=SCREAMING_SNAKE_CASE__				)
       lowercase							:     List[str]       	=      optax.linear_schedule(init_value=SCREAMING_SNAKE_CASE__					,	end_value=1e-7					,	transition_steps=SCREAMING_SNAKE_CASE__				)
       lowercase							:     Tuple       	=      optax.join_schedules(schedules=[warmup_fn, decay_fn]					,	boundaries=[warmup_steps]				)
       return lr







def 						_snake_case(  SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__				) ->    Optional[Any]:
       def weight_decay_mask(SCREAMING_SNAKE_CASE__				):
              lowercase							:     List[Any]       	=      traverse_util.flatten_dict(SCREAMING_SNAKE_CASE__				)
              lowercase							:     List[Any]       	=      {k: (v[-1] != """bias""" and v[-2:] != ("""LayerNorm""", """scale""")) for k, v in params.items()}
              return traverse_util.unflatten_dict(SCREAMING_SNAKE_CASE__				)

       lowercase							:     List[str]       	=      scheduler_fn(SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__					,	SCREAMING_SNAKE_CASE__				)

       lowercase							:     List[str]       	=      optax.adamw(learning_rate=SCREAMING_SNAKE_CASE__					,	weight_decay=SCREAMING_SNAKE_CASE__					,	mask=SCREAMING_SNAKE_CASE__				)
       return tx, lr
