




"""simple docstring"""




from __future__ import annotations

from collections.abc import Iterable, Iterator
from dataclasses import dataclass

a_        =       (3, 9, -1_1, 0, 7, 5, 1, -1)
a_        =       (4, 6, 2, 0, 8, 1_0, 3, -2)

@dataclass
class   UpperCAmelCase_    :
		UpperCamelCase							=42
		UpperCamelCase							=42


class   UpperCAmelCase_    :
		def __init__(						self				,						UpperCamelCase_       )						->       Union[str, Any]:
					__lowercase			:  Node | None								=       None
					for i in sorted(lowercase__				,						reverse=lowercase__       ):
								__lowercase			:  Dict								=       Node(lowercase__				,						self.head       )
		def __iter__(						self       )						->       Tuple:
					__lowercase			:  Any								=       self.head
					while node:
								yield node.data
								__lowercase			:  Optional[int]								=       node.next_node
		def __len__(						self       )						->       Tuple:
					return sum(1 for _ in self       )
		def __str__(						self       )						->       Tuple:
					return " -> ".join([str(lowercase__       ) for node in self]       )







def      __UpperCAmelCase     ( __UpperCamelCase	,				__UpperCamelCase	):
			return SortedLinkedList(list(lowercase_	) + list(lowercase_	)	)


if __name__ == "__main__":
			import doctest

			doctest.testmod()
			a_        =       SortedLinkedList
			print(merge_lists(SSL(test_data_odd), SSL(test_data_even)))







import copy
import inspect
import unittest

from transformers import AutoBackbone
from transformers.configuration_utils import PretrainedConfig
from transformers.testing_utils import require_timm, require_torch, torch_device
from transformers.utils.import_utils import is_torch_available

from ...test_backbone_common import BackboneTesterMixin
from ...test_configuration_common import ConfigTester
from ...test_modeling_common import ModelTesterMixin, floats_tensor


if is_torch_available():
				import torch

				from transformers import TimmBackbone, TimmBackboneConfig

from ...test_pipeline_mixin import PipelineTesterMixin




class 							lowerCamelCase   :


	def __init__(    self				,     lowercase__				,     lowercase__=None				,     lowercase__=None				,     lowercase__=None				,     lowercase__="resnet50"				,     lowercase__=3				,     lowercase__=3_2				,     lowercase__=3				,     lowercase__=True				,     lowercase__=True				,     ):
							__UpperCAmelCase			:							List[str]	    =	parent
							__UpperCAmelCase			:							Dict	    =	out_indices if out_indices is not None else [4]
							__UpperCAmelCase			:							List[Any]	    =	stage_names
							__UpperCAmelCase			:							int	    =	out_features
							__UpperCAmelCase			:							Union[str, Any]	    =	backbone
							__UpperCAmelCase			:							Optional[Any]	    =	batch_size
							__UpperCAmelCase			:							Optional[Any]	    =	image_size
							__UpperCAmelCase			:							Optional[int]	    =	num_channels
							__UpperCAmelCase			:							List[Any]	    =	use_pretrained_backbone
							__UpperCAmelCase			:							Dict	    =	is_training


	def  A(    self):
							__UpperCAmelCase			:							Optional[Any]	    =	floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size])
							__UpperCAmelCase			:							Tuple	    =	self.get_config()

							return config, pixel_values


	def  A(    self):
							return TimmBackboneConfig(
							    image_size=self.image_size				,     num_channels=self.num_channels				,     out_features=self.out_features				,     out_indices=self.out_indices				,     stage_names=self.stage_names				,     use_pretrained_backbone=self.use_pretrained_backbone				,     backbone=self.backbone				,     )


	def  A(    self				,     lowercase__				,     lowercase__):
							__UpperCAmelCase			:							Tuple	    =	TimmBackbone(config=lowercase__)
							model.to(lowercase__)
							model.eval()
							with torch.no_grad():
													__UpperCAmelCase			:							Union[str, Any]	    =	model(lowercase__)
							self.parent.assertEqual(
							    result.feature_map[-1].shape				,     (self.batch_size, model.channels[-1], 1_4, 1_4)				,     )


	def  A(    self):
							__UpperCAmelCase			:							Dict	    =	self.prepare_config_and_inputs()
							__UpperCAmelCase    ,      __UpperCAmelCase			:							List[Any]	    =	config_and_inputs
							__UpperCAmelCase			:							List[Any]	    =	{'''pixel_values''': pixel_values}
							return config, inputs_dict






@require_torch
@require_timm
class 							lowerCamelCase   (  _UpperCamelCase							,						_UpperCamelCase							,						_UpperCamelCase							,						unittest.TestCase ):
	_lowerCAmelCase     :		Dict										=						(TimmBackbone,) if is_torch_available() else ()
	_lowerCAmelCase     :		str										=						{'''feature-extraction''': TimmBackbone} if is_torch_available() else {}
	_lowerCAmelCase     :		List[str]										=						False
	_lowerCAmelCase     :		str										=						False
	_lowerCAmelCase     :		List[Any]										=						False
	_lowerCAmelCase     :		List[str]										=						False


	def  A(    self):
							__UpperCAmelCase			:							List[Any]	    =	TimmBackboneModelTester(self)
							__UpperCAmelCase			:							int	    =	ConfigTester(self				,     config_class=lowercase__				,     has_text_modality=lowercase__)


	def  A(    self):
							self.config_tester.create_and_test_config_to_json_string()
							self.config_tester.create_and_test_config_to_json_file()
							self.config_tester.create_and_test_config_from_and_save_pretrained()
							self.config_tester.create_and_test_config_with_num_labels()
							self.config_tester.check_config_can_be_init_without_params()
							self.config_tester.check_config_arguments_init()


	def  A(    self):
							__UpperCAmelCase			:							int	    =	'''resnet18'''
							__UpperCAmelCase			:							List[str]	    =	'''microsoft/resnet-18'''

							__UpperCAmelCase			:							Any	    =	AutoBackbone.from_pretrained(lowercase__				,     use_timm_backbone=lowercase__)
							__UpperCAmelCase			:							Union[str, Any]	    =	AutoBackbone.from_pretrained(lowercase__)

							self.assertEqual(len(timm_model.out_features)				,     len(transformers_model.out_features))
							self.assertEqual(len(timm_model.stage_names)				,     len(transformers_model.stage_names))
							self.assertEqual(timm_model.channels				,     transformers_model.channels)
							# Out indices are set to the last layer by default. For timm models, we don't know
							# the number of layers in advance, so we set it to (-1,), whereas for transformers
							# models, we set it to [len(stage_names) - 1] (kept for backward compatibility).
							self.assertEqual(timm_model.out_indices				,     (-1,))
							self.assertEqual(transformers_model.out_indices				,     [len(timm_model.stage_names) - 1])

							__UpperCAmelCase			:							Union[str, Any]	    =	AutoBackbone.from_pretrained(lowercase__				,     use_timm_backbone=lowercase__				,     out_indices=[1, 2, 3])
							__UpperCAmelCase			:							Any	    =	AutoBackbone.from_pretrained(lowercase__				,     out_indices=[1, 2, 3])

							self.assertEqual(timm_model.out_indices				,     transformers_model.out_indices)
							self.assertEqual(len(timm_model.out_features)				,     len(transformers_model.out_features))
							self.assertEqual(timm_model.channels				,     transformers_model.channels)


	@unittest.skip('''TimmBackbone doesn\'t support feed forward chunking''')
	def  A(    self):
							pass


	@unittest.skip('''TimmBackbone doesn\'t have num_hidden_layers attribute''')
	def  A(    self):
							pass


	@unittest.skip('''TimmBackbone initialization is managed on the timm side''')
	def  A(    self):
							pass


	@unittest.skip('''TimmBackbone models doesn\'t have inputs_embeds''')
	def  A(    self):
							pass


	@unittest.skip('''TimmBackbone models doesn\'t have inputs_embeds''')
	def  A(    self):
							pass


	@unittest.skip('''TimmBackbone model cannot be created without specifying a backbone checkpoint''')
	def  A(    self):
							pass


	@unittest.skip('''Only checkpoints on timm can be loaded into TimmBackbone''')
	def  A(    self):
							pass


	@unittest.skip('''model weights aren\'t tied in TimmBackbone.''')
	def  A(    self):
							pass


	@unittest.skip('''model weights aren\'t tied in TimmBackbone.''')
	def  A(    self):
							pass


	@unittest.skip('''Only checkpoints on timm can be loaded into TimmBackbone''')
	def  A(    self):
							pass


	@unittest.skip('''Only checkpoints on timm can be loaded into TimmBackbone''')
	def  A(    self):
							pass


	@unittest.skip('''TimmBackbone doesn\'t have hidden size info in its configuration.''')
	def  A(    self):
							pass


	@unittest.skip('''TimmBackbone doesn\'t support output_attentions.''')
	def  A(    self):
							pass


	@unittest.skip('''Safetensors is not supported by timm.''')
	def  A(    self):
							pass


	@unittest.skip('''Will be fixed soon by reducing the size of the model used for common tests.''')
	def  A(    self):
							pass


	def  A(    self):
							__UpperCAmelCase    ,      __UpperCAmelCase			:							Optional[int]	    =	self.model_tester.prepare_config_and_inputs_for_common()

							for model_class in self.all_model_classes:
													__UpperCAmelCase			:							Any	    =	model_class(lowercase__)
													__UpperCAmelCase			:							Optional[int]	    =	inspect.signature(model.forward)
													# signature.parameters is an OrderedDict => so arg_names order is deterministic
													__UpperCAmelCase			:							Optional[int]	    =	[*signature.parameters.keys()]

													__UpperCAmelCase			:							Dict	    =	['''pixel_values''']
													self.assertListEqual(arg_names[:1]				,     lowercase__)


	def  A(    self):
							__UpperCAmelCase    ,      __UpperCAmelCase			:							str	    =	self.model_tester.prepare_config_and_inputs_for_common()
							__UpperCAmelCase			:							Tuple	    =	True
							__UpperCAmelCase			:							Optional[int]	    =	self.has_attentions

							# no need to test all models as different heads yield the same functionality
							__UpperCAmelCase			:							Optional[Any]	    =	self.all_model_classes[0]
							__UpperCAmelCase			:							Optional[int]	    =	model_class(lowercase__)
							model.to(lowercase__)

							__UpperCAmelCase			:							Tuple	    =	self._prepare_for_class(lowercase__				,     lowercase__)
							__UpperCAmelCase			:							Optional[int]	    =	model(**lowercase__)
							__UpperCAmelCase			:							List[str]	    =	outputs[0][-1]

							# Encoder-/Decoder-only models
							__UpperCAmelCase			:							Dict	    =	outputs.hidden_states[0]
							hidden_states.retain_grad()

							if self.has_attentions:
													__UpperCAmelCase			:							Optional[int]	    =	outputs.attentions[0]
													attentions.retain_grad()

							output.flatten()[0].backward(retain_graph=lowercase__)

							self.assertIsNotNone(hidden_states.grad)

							if self.has_attentions:
													self.assertIsNotNone(attentions.grad)


	def  A(    self):
							__UpperCAmelCase    ,      __UpperCAmelCase			:							Dict	    =	self.model_tester.prepare_config_and_inputs_for_common()

							for model_class in self.all_model_classes:
													__UpperCAmelCase			:							Optional[Any]	    =	model_class(lowercase__)
													model.to(lowercase__)
													model.eval()
													__UpperCAmelCase			:							Union[str, Any]	    =	model(**lowercase__)

													self.assertEqual(len(result.feature_maps)				,     len(config.out_indices))
													self.assertEqual(len(model.channels)				,     len(config.out_indices))

													# Check output of last stage is taken if out_features=None, out_indices=None
													__UpperCAmelCase			:							List[str]	    =	copy.deepcopy(lowercase__)
													__UpperCAmelCase			:							str	    =	None
													__UpperCAmelCase			:							Optional[int]	    =	model_class(lowercase__)
													model.to(lowercase__)
													model.eval()
													__UpperCAmelCase			:							Optional[Any]	    =	model(**lowercase__)

													self.assertEqual(len(result.feature_maps)				,     1)
													self.assertEqual(len(model.channels)				,     1)

													# Check backbone can be initialized with fresh weights
													__UpperCAmelCase			:							Tuple	    =	copy.deepcopy(lowercase__)
													__UpperCAmelCase			:							Optional[int]	    =	False
													__UpperCAmelCase			:							Optional[int]	    =	model_class(lowercase__)
													model.to(lowercase__)
													model.eval()
													__UpperCAmelCase			:							List[Any]	    =	model(**lowercase__)

