


from typing import Any





class       A    :


							def __init__(self      ,				lowerCAmelCase					):
									__lowercase=			data
									__lowercase=			None







							def __repr__(self					):
									return f'Node({self.data})'





class       A    :


							def __init__(self					):
									__lowercase=			None


							def __iter__(self					):
									__lowercase=			self.head
									while node:
											yield node.data
											__lowercase=			node.next


							def __len__(self					):
									return sum(1 for _ in self					)


							def __repr__(self					):
									return "->".join([str(lowerCAmelCase					) for item in self]					)


							def __getitem__(self      ,				lowerCAmelCase					):
									if not 0 <= index < len(self					):
											raise ValueError('list index out of range.'					)
									for i, node in enumerate(self					):
											if i == index:
													return node
									return None


							def __setitem__(self      ,				lowerCAmelCase      ,				lowerCAmelCase					):
									if not 0 <= index < len(self					):
											raise ValueError('list index out of range.'					)
									__lowercase=			self.head
									for _ in range(lowerCAmelCase					):
											__lowercase=			current.next
									__lowercase=			data


							def 			_A       (self      ,				lowerCAmelCase					):
									self.insert_nth(len(self					)      ,				lowerCAmelCase					)


							def 			_A       (self      ,				lowerCAmelCase					):
									self.insert_nth(0      ,				lowerCAmelCase					)


							def 			_A       (self      ,				lowerCAmelCase      ,				lowerCAmelCase					):
									if not 0 <= index <= len(self					):
											raise IndexError('list index out of range'					)
									__lowercase=			Node(lowerCAmelCase					)
									if self.head is None:
											__lowercase=			new_node
									elif index == 0:
											__lowercase=			self.head  # link new_node to head
											__lowercase=			new_node
									else:
											__lowercase=			self.head
											for _ in range(index - 1					):
													__lowercase=			temp.next
											__lowercase=			temp.next
											__lowercase=			new_node


							def 			_A       (self					):  # print every node data
									print(self					)


							def 			_A       (self					):
									return self.delete_nth(0					)


							def 			_A       (self					):  # delete from tail
									return self.delete_nth(len(self					) - 1					)


							def 			_A       (self      ,				lowerCAmelCase = 0					):
									if not 0 <= index <= len(self					) - 1:  # test if index is valid
											raise IndexError('List index out of range.'					)
									__lowercase=			self.head  # default first node
									if index == 0:
											__lowercase=			self.head.next
									else:
											__lowercase=			self.head
											for _ in range(index - 1					):
													__lowercase=			temp.next
											__lowercase=			temp.next
											__lowercase=			temp.next.next
									return delete_node.data


							def 			_A       (self					):
									return self.head is None







							def 			_A       (self					):
									__lowercase=			None
									__lowercase=			self.head

									while current:
											# Store the current node's next node.
											__lowercase=			current.next
											# Make the current node's next point backwards
											__lowercase=			prev
											# Make the previous node be the current node
											__lowercase=			current
											# Make the current node the next node (to progress iteration)
											__lowercase=			next_node
									# Return prev in order to put the head at the end
									__lowercase=			prev







def        _lowerCamelCase(	)						->	None:

		'''simple docstring'''







		__lowercase=			LinkedList()
		assert linked_list.is_empty() is True
		assert str(lowercase__	) == ""

		try:
				linked_list.delete_head()
				raise AssertionError  # This should not happen.
		except IndexError:
				assert True  # This should happen.

		try:
				linked_list.delete_tail()
				raise AssertionError  # This should not happen.
		except IndexError:
				assert True  # This should happen.

		for i in range(1_0	):
				assert len(lowercase__	) == i
				linked_list.insert_nth(lowercase__   , i + 1	)
		assert str(lowercase__	) == "->".join(str(lowercase__	) for i in range(1   , 1_1	)	)

		linked_list.insert_head(0	)
		linked_list.insert_tail(1_1	)
		assert str(lowercase__	) == "->".join(str(lowercase__	) for i in range(0   , 1_2	)	)

		assert linked_list.delete_head() == 0
		assert linked_list.delete_nth(9	) == 1_0
		assert linked_list.delete_tail() == 1_1
		assert len(lowercase__	) == 9
		assert str(lowercase__	) == "->".join(str(lowercase__	) for i in range(1   , 1_0	)	)

		assert all(linked_list[i] == i + 1 for i in range(0   , 9	)	) is True

		for i in range(0   , 9	):
				__lowercase=			-i
		assert all(linked_list[i] == -i for i in range(0   , 9	)	) is True

		linked_list.reverse()
		assert str(lowercase__	) == "->".join(str(lowercase__	) for i in range(-8   , 1	)	)







def        _lowerCamelCase(	)						->	None:

		'''simple docstring'''







		__lowercase=			[
		    -9,
		    1_0_0,
		    Node(7_7_3_4_5_1_1_2	),
		    'dlrow olleH',
		    7,
		    5_5_5_5,
		    0,
		    -192.5_5555,
		    'Hello, world!',
		    77.9,
		    Node(1_0	),
		    None,
		    None,
		    12.20,
		]
		__lowercase=			LinkedList()

		for i in test_input:
				linked_list.insert_tail(lowercase__	)

		# Check if it's empty or not
		assert linked_list.is_empty() is False
		assert (
		    str(lowercase__	) == "-9->100->Node(77345112)->dlrow olleH->7->5555->0->"
		    "-192.55555->Hello, world!->77.9->Node(10)->None->None->12.2"
		)

		# Delete the head
		__lowercase=			linked_list.delete_head()
		assert result == -9
		assert (
		    str(lowercase__	) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
		    "Hello, world!->77.9->Node(10)->None->None->12.2"
		)

		# Delete the tail
		__lowercase=			linked_list.delete_tail()
		assert result == 12.2
		assert (
		    str(lowercase__	) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
		    "Hello, world!->77.9->Node(10)->None->None"
		)

		# Delete a node in specific location in linked list
		__lowercase=			linked_list.delete_nth(1_0	)
		assert result is None
		assert (
		    str(lowercase__	) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
		    "Hello, world!->77.9->Node(10)->None"
		)

		# Add a Node instance to its head
		linked_list.insert_head(Node('Hello again, world!'	)	)
		assert (
		    str(lowercase__	)
		    == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
		    "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None"
		)

		# Add None to its tail
		linked_list.insert_tail(lowercase__	)
		assert (
		    str(lowercase__	)
		    == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
		    "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None->None"
		)

		# Reverse the linked list
		linked_list.reverse()
		assert (
		    str(lowercase__	)
		    == "None->None->Node(10)->77.9->Hello, world!->-192.55555->0->5555->"
		    "7->dlrow olleH->Node(77345112)->100->Node(Hello again, world!)"
		)







def        _lowerCamelCase(	)						->	List[str]:

		'''simple docstring'''







		from doctest import testmod

		testmod()

		__lowercase=			LinkedList()
		linked_list.insert_head(input('Inserting 1st at head '	).strip()	)
		linked_list.insert_head(input('Inserting 2nd at head '	).strip()	)
		print('\nPrint list:'	)
		linked_list.print_list()
		linked_list.insert_tail(input('\nInserting 1st at tail '	).strip()	)
		linked_list.insert_tail(input('Inserting 2nd at tail '	).strip()	)
		print('\nPrint list:'	)
		linked_list.print_list()
		print('\nDelete head'	)
		linked_list.delete_head()
		print('Delete tail'	)
		linked_list.delete_tail()
		print('\nPrint list:'	)
		linked_list.print_list()
		print('\nReverse linked list'	)
		linked_list.reverse()
		print('\nPrint list:'	)
		linked_list.print_list()
		print('\nString representation of linked list:'	)
		print(lowercase__	)
		print('\nReading/changing Node data using indexing:'	)
		print(F'Element at Position 1: {linked_list[1]}'	)
		__lowercase=			input('Enter New Value: '	).strip()
		print('New list:'	)
		print(lowercase__	)
		print(F'length of linked_list is : {len(lowercase__	)}'	)


if __name__ == "__main__":
	main()










from dataclasses import dataclass
from typing import Optional, Tuple, Union

import torch
import torch.nn as nn

from ..configuration_utils import ConfigMixin, register_to_config
from ..utils import BaseOutput, apply_forward_hook
from .modeling_utils import ModelMixin
from .vae import Decoder, DecoderOutput, Encoder, VectorQuantizer





@dataclass
class       A    (   A_ ):
							UpperCamelCase_   :							torch.FloatTensor





class       A    (   A_					,				A_ ):


							@register_to_config
							def __init__(self      ,				lowerCAmelCase = 3      ,				lowerCAmelCase = 3      ,				lowerCAmelCase = ("DownEncoderBlock2D",)      ,				lowerCAmelCase = ("UpDecoderBlock2D",)      ,				lowerCAmelCase = (6_4,)      ,				lowerCAmelCase = 1      ,				lowerCAmelCase = "silu"      ,				lowerCAmelCase = 3      ,				lowerCAmelCase = 3_2      ,				lowerCAmelCase = 2_5_6      ,				lowerCAmelCase = 3_2      ,				lowerCAmelCase = None      ,				lowerCAmelCase = 0.1_82_15      ,				lowerCAmelCase = "group"      ,				):
									super().__init__()

									# pass init params to Encoder
									__lowercase=			Encoder(
									    in_channels=lowerCAmelCase      ,				out_channels=lowerCAmelCase      ,				down_block_types=lowerCAmelCase      ,				block_out_channels=lowerCAmelCase      ,				layers_per_block=lowerCAmelCase      ,				act_fn=lowerCAmelCase      ,				norm_num_groups=lowerCAmelCase      ,				double_z=lowerCAmelCase      ,				)

									__lowercase=			vq_embed_dim if vq_embed_dim is not None else latent_channels

									__lowercase=			nn.Convad(lowerCAmelCase      ,				lowerCAmelCase      ,				1					)
									__lowercase=			VectorQuantizer(lowerCAmelCase      ,				lowerCAmelCase      ,				beta=0.25      ,				remap=lowerCAmelCase      ,				sane_index_shape=lowerCAmelCase					)
									__lowercase=			nn.Convad(lowerCAmelCase      ,				lowerCAmelCase      ,				1					)

									# pass init params to Decoder
									__lowercase=			Decoder(
									    in_channels=lowerCAmelCase      ,				out_channels=lowerCAmelCase      ,				up_block_types=lowerCAmelCase      ,				block_out_channels=lowerCAmelCase      ,				layers_per_block=lowerCAmelCase      ,				act_fn=lowerCAmelCase      ,				norm_num_groups=lowerCAmelCase      ,				norm_type=lowerCAmelCase      ,				)


							@apply_forward_hook
							def 			_A       (self      ,				lowerCAmelCase      ,				lowerCAmelCase = True					):
									__lowercase=			self.encoder(lowerCAmelCase					)
									__lowercase=			self.quant_conv(lowerCAmelCase					)

									if not return_dict:
											return (h,)

									return VQEncoderOutput(latents=lowerCAmelCase					)


							@apply_forward_hook
							def 			_A       (self      ,				lowerCAmelCase      ,				lowerCAmelCase = False      ,				lowerCAmelCase = True					):
									# also go through quantization layer
									if not force_not_quantize:
											__lowercase,							__lowercase,							__lowercase=			self.quantize(lowerCAmelCase					)
									else:
											__lowercase=			h
									__lowercase=			self.post_quant_conv(lowerCAmelCase					)
									__lowercase=			self.decoder(lowerCAmelCase      ,				quant if self.config.norm_type == 'spatial' else None					)

									if not return_dict:
											return (dec,)

									return DecoderOutput(sample=lowerCAmelCase					)







							def 			_A       (self      ,				lowerCAmelCase      ,				lowerCAmelCase = True					):
									__lowercase=			sample
									__lowercase=			self.encode(lowerCAmelCase					).latents
									__lowercase=			self.decode(lowerCAmelCase					).sample

									if not return_dict:
											return (dec,)

									return DecoderOutput(sample=lowerCAmelCase					)






