"""simple docstring"""





from ...configuration_utils import PretrainedConfig
from ...utils import logging


snake_case__		:     int    				=				logging.get_logger(__name__)

snake_case__		:     List[str]    				=				{
    '''microsoft/swinv2-tiny-patch4-window8-256''': (
        '''https://huggingface.co/microsoft/swinv2-tiny-patch4-window8-256/resolve/main/config.json'''
    ),
}



class 		snake_case_(       a__			):
     __UpperCamelCase  =					'''swinv2'''

     __UpperCamelCase  =					{
         '''num_attention_heads''': '''num_heads''',
         '''num_hidden_layers''': '''num_layers''',
     }






     def __init__(	self  :					str					,				UpperCamelCase_  :					Any=2_2_4					,				UpperCamelCase_  :					int=4					,				UpperCamelCase_  :					List[Any]=3					,				UpperCamelCase_  :					int=9_6					,				UpperCamelCase_  :					str=[2, 2, 6, 2]					,				UpperCamelCase_  :					Dict=[3, 6, 1_2, 2_4]					,				UpperCamelCase_  :					List[str]=7					,				UpperCamelCase_  :					Dict=4.0					,				UpperCamelCase_  :					Any=True					,				UpperCamelCase_  :					Any=0.0					,				UpperCamelCase_  :					Union[str, Any]=0.0					,				UpperCamelCase_  :					str=0.1					,				UpperCamelCase_  :					List[Any]="gelu"					,				UpperCamelCase_  :					Union[str, Any]=False					,				UpperCamelCase_  :					Any=0.02					,				UpperCamelCase_  :					Optional[int]=1E-5					,				UpperCamelCase_  :					str=3_2					,				**UpperCamelCase_  :					str					,				):
           super().__init__(**UpperCamelCase_				)

           lowerCAmelCase					:	int       =   image_size
           lowerCAmelCase					:	List[Any]       =   patch_size
           lowerCAmelCase					:	Optional[Any]       =   num_channels
           lowerCAmelCase					:	Tuple       =   embed_dim
           lowerCAmelCase					:	Optional[int]       =   depths
           lowerCAmelCase					:	Optional[int]       =   len(UpperCamelCase_				)
           lowerCAmelCase					:	int       =   num_heads
           lowerCAmelCase					:	str       =   window_size
           lowerCAmelCase					:	List[Any]       =   mlp_ratio
           lowerCAmelCase					:	List[Any]       =   qkv_bias
           lowerCAmelCase					:	List[Any]       =   hidden_dropout_prob
           lowerCAmelCase					:	str       =   attention_probs_dropout_prob
           lowerCAmelCase					:	int       =   drop_path_rate
           lowerCAmelCase					:	Optional[Any]       =   hidden_act
           lowerCAmelCase					:	Optional[Any]       =   use_absolute_embeddings
           lowerCAmelCase					:	List[Any]       =   layer_norm_eps
           lowerCAmelCase					:	Optional[int]       =   initializer_range
           lowerCAmelCase					:	str       =   encoder_stride
           # we set the hidden_size attribute in order to make Swinv2 work with VisionEncoderDecoderModel
           # this indicates the channel dimension after the last stage of the model
           lowerCAmelCase					:	List[str]       =   int(embed_dim * 2 ** (len(UpperCamelCase_				) - 1)				)
           lowerCAmelCase					:	Dict       =   (0, 0, 0, 0)






"""simple docstring"""





import os
import tempfile
import unittest

from transformers import is_torch_available
from transformers.testing_utils import require_torch


if is_torch_available():
 import torch
 from torch import nn

 from transformers import (
     Adafactor,
     AdamW,
     get_constant_schedule,
     get_constant_schedule_with_warmup,
     get_cosine_schedule_with_warmup,
     get_cosine_with_hard_restarts_schedule_with_warmup,
     get_inverse_sqrt_schedule,
     get_linear_schedule_with_warmup,
     get_polynomial_decay_schedule_with_warmup,
 )


def      _snake_case						(						_snake_case				:			Tuple ,   _snake_case				:			Union[str, Any]=10			):
      lowerCAmelCase					:	Dict       =   []
      for _ in range(_snake_case			):
            lrs.append(scheduler.get_lr()[0]			)
            scheduler.step()
      return lrs


def      _snake_case						(						_snake_case				:			Optional[int] ,   _snake_case				:			int=10			):
      lowerCAmelCase					:	Optional[int]       =   []
      for step in range(_snake_case			):
            lrs.append(scheduler.get_lr()[0]			)
            scheduler.step()
            if step == num_steps // 2:
                  with tempfile.TemporaryDirectory() as tmpdirname:
                        lowerCAmelCase					:	List[str]       =   os.path.join(_snake_case ,   '''schedule.bin'''			)
                        torch.save(scheduler.state_dict() ,   _snake_case			)

                        lowerCAmelCase					:	List[Any]       =   torch.load(_snake_case			)
                        scheduler.load_state_dict(_snake_case			)
      return lrs



@require_torch
class 		snake_case_(       unittest.TestCase			):






     def      lowerCamelCase__     (	self  :					Optional[int]					,				UpperCamelCase_  :					Optional[int]					,				UpperCamelCase_  :					str					,				UpperCamelCase_  :					Any				):
           self.assertEqual(len(UpperCamelCase_				)					,				len(UpperCamelCase_				)				)
           for a, b in zip(UpperCamelCase_					,				UpperCamelCase_				):
                 self.assertAlmostEqual(UpperCamelCase_					,				UpperCamelCase_					,				delta=UpperCamelCase_				)






     def      lowerCamelCase__     (	self  :					Tuple				):
           lowerCAmelCase					:	Any       =   torch.tensor([0.1, -0.2, -0.1]					,				requires_grad=UpperCamelCase_				)
           lowerCAmelCase					:	List[str]       =   torch.tensor([0.4, 0.2, -0.5]				)
           lowerCAmelCase					:	List[Any]       =   nn.MSELoss()
           # No warmup, constant schedule, no gradient clipping
           lowerCAmelCase					:	Union[str, Any]       =   AdamW(params=[w]					,				lr=2E-1					,				weight_decay=0.0				)
           for _ in range(1_0_0				):
                 lowerCAmelCase					:	Union[str, Any]       =   criterion(UpperCamelCase_					,				UpperCamelCase_				)
                 loss.backward()
                 optimizer.step()
                 w.grad.detach_()  # No zero_grad() function on simple tensors. we do it ourselves.
                 w.grad.zero_()
           self.assertListAlmostEqual(w.tolist()					,				[0.4, 0.2, -0.5]					,				tol=1E-2				)






     def      lowerCamelCase__     (	self  :					Union[str, Any]				):
           lowerCAmelCase					:	Tuple       =   torch.tensor([0.1, -0.2, -0.1]					,				requires_grad=UpperCamelCase_				)
           lowerCAmelCase					:	Union[str, Any]       =   torch.tensor([0.4, 0.2, -0.5]				)
           lowerCAmelCase					:	Optional[int]       =   nn.MSELoss()
           # No warmup, constant schedule, no gradient clipping
           lowerCAmelCase					:	Any       =   Adafactor(
               params=[w]					,				lr=1E-2					,				eps=(1E-30, 1E-3)					,				clip_threshold=1.0					,				decay_rate=-0.8					,				betaa=UpperCamelCase_					,				weight_decay=0.0					,				relative_step=UpperCamelCase_					,				scale_parameter=UpperCamelCase_					,				warmup_init=UpperCamelCase_					,				)
           for _ in range(1_0_0_0				):
                 lowerCAmelCase					:	List[Any]       =   criterion(UpperCamelCase_					,				UpperCamelCase_				)
                 loss.backward()
                 optimizer.step()
                 w.grad.detach_()  # No zero_grad() function on simple tensors. we do it ourselves.
                 w.grad.zero_()
           self.assertListAlmostEqual(w.tolist()					,				[0.4, 0.2, -0.5]					,				tol=1E-2				)



@require_torch
class 		snake_case_(       unittest.TestCase			):
     __UpperCamelCase  =					nn.Linear(50							,					50			) if is_torch_available() else None
     __UpperCamelCase  =					AdamW(m.parameters()							,					lr=10.0			) if is_torch_available() else None
     __UpperCamelCase  =					10






     def      lowerCamelCase__     (	self  :					Union[str, Any]					,				UpperCamelCase_  :					str					,				UpperCamelCase_  :					str					,				UpperCamelCase_  :					Optional[Any]					,				UpperCamelCase_  :					Union[str, Any]=None				):
           self.assertEqual(len(UpperCamelCase_				)					,				len(UpperCamelCase_				)				)
           for a, b in zip(UpperCamelCase_					,				UpperCamelCase_				):
                 self.assertAlmostEqual(UpperCamelCase_					,				UpperCamelCase_					,				delta=UpperCamelCase_					,				msg=UpperCamelCase_				)






     def      lowerCamelCase__     (	self  :					Union[str, Any]				):
           lowerCAmelCase					:	Tuple       =   {'''num_warmup_steps''': 2, '''num_training_steps''': 1_0}
           # schedulers doct format
           # function: (sched_args_dict, expected_learning_rates)
           lowerCAmelCase					:	Optional[Any]       =   {
               get_constant_schedule: ({}, [10.0] * self.num_steps),
               get_constant_schedule_with_warmup: (
                   {'''num_warmup_steps''': 4},
                   [0.0, 2.5, 5.0, 7.5, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0],
               ),
               get_linear_schedule_with_warmup: (
                   {**common_kwargs},
                   [0.0, 5.0, 10.0, 8.75, 7.5, 6.25, 5.0, 3.75, 2.5, 1.25],
               ),
               get_cosine_schedule_with_warmup: (
                   {**common_kwargs},
                   [0.0, 5.0, 10.0, 9.61, 8.53, 6.91, 5.0, 3.08, 1.46, 0.38],
               ),
               get_cosine_with_hard_restarts_schedule_with_warmup: (
                   {**common_kwargs, '''num_cycles''': 2},
                   [0.0, 5.0, 10.0, 8.53, 5.0, 1.46, 10.0, 8.53, 5.0, 1.46],
               ),
               get_polynomial_decay_schedule_with_warmup: (
                   {**common_kwargs, '''power''': 2.0, '''lr_end''': 1E-7},
                   [0.0, 5.0, 10.0, 7.656, 5.625, 3.906, 2.5, 1.406, 0.625, 0.156],
               ),
               get_inverse_sqrt_schedule: (
                   {'''num_warmup_steps''': 2},
                   [0.0, 5.0, 10.0, 8.165, 7.071, 6.325, 5.774, 5.345, 5.0, 4.714],
               ),
           }

           for scheduler_func, data in scheds.items():
                 lowerCAmelCase,      lowerCAmelCase					:	Union[str, Any]       =   data

                 lowerCAmelCase					:	List[Any]       =   scheduler_func(self.optimizer					,				**UpperCamelCase_				)
                 self.assertEqual(len([scheduler.get_lr()[0]]				)					,				1				)
                 lowerCAmelCase					:	str       =   unwrap_schedule(UpperCamelCase_					,				self.num_steps				)
                 self.assertListAlmostEqual(
                     UpperCamelCase_					,				UpperCamelCase_					,				tol=1E-2					,				msg=F'''failed for {scheduler_func} in normal scheduler'''					,				)

                 lowerCAmelCase					:	Optional[int]       =   scheduler_func(self.optimizer					,				**UpperCamelCase_				)
                 if scheduler_func.__name__ != "get_constant_schedule":
                       LambdaScheduleWrapper.wrap_scheduler(UpperCamelCase_				)  # wrap to test picklability of the schedule
                 lowerCAmelCase					:	List[Any]       =   unwrap_and_save_reload_schedule(UpperCamelCase_					,				self.num_steps				)
                 self.assertListEqual(UpperCamelCase_					,				UpperCamelCase_					,				msg=F'''failed for {scheduler_func} in save and reload'''				)



class 		snake_case_:






     def __init__(	self  :					List[Any]					,				UpperCamelCase_  :					Any				):
           lowerCAmelCase					:	Tuple       =   fn






     def __call__(	self  :					Union[str, Any]					,				*UpperCamelCase_  :					Optional[Any]					,				**UpperCamelCase_  :					List[Any]				):
           return self.fn(*UpperCamelCase_					,				**UpperCamelCase_				)






     @classmethod
     def      lowerCamelCase__     (	self  :					Any					,				UpperCamelCase_  :					Optional[int]				):
           lowerCAmelCase					:	Union[str, Any]       =   list(map(self					,				scheduler.lr_lambdas				)				)


