



from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available


lowerCAmelCase__	:  List[str] 		={
    '''configuration_musicgen''': [
        '''MUSICGEN_PRETRAINED_CONFIG_ARCHIVE_MAP''',
        '''MusicgenConfig''',
        '''MusicgenDecoderConfig''',
    ],
    '''processing_musicgen''': ['''MusicgenProcessor'''],
}

try:
			if not is_torch_available():
						raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
			pass
else:
			lowerCAmelCase__	:  Optional[Any] 		=[
			    '''MUSICGEN_PRETRAINED_MODEL_ARCHIVE_LIST''',
			    '''MusicgenForConditionalGeneration''',
			    '''MusicgenForCausalLM''',
			    '''MusicgenModel''',
			    '''MusicgenPreTrainedModel''',
			]

if TYPE_CHECKING:
			from .configuration_musicgen import (
			    MUSICGEN_PRETRAINED_CONFIG_ARCHIVE_MAP,
			    MusicgenConfig,
			    MusicgenDecoderConfig,
			)
			from .processing_musicgen import MusicgenProcessor

			try:
						if not is_torch_available():
									raise OptionalDependencyNotAvailable()
			except OptionalDependencyNotAvailable:
						pass
			else:
						from .modeling_musicgen import (
						    MUSICGEN_PRETRAINED_MODEL_ARCHIVE_LIST,
						    MusicgenForCausalLM,
						    MusicgenForConditionalGeneration,
						    MusicgenModel,
						    MusicgenPreTrainedModel,
						)

else:
			import sys

			lowerCAmelCase__	:  int 		=_LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)











from __future__ import annotations

from collections.abc import Iterable
from dataclasses import dataclass
from typing import Any

class      UpperCAmelCase_						:

						'''simple docstring'''




						UpperCamelCase__    :				List[str]       						=						('''_front''', '''_back''', '''_len''')

						@dataclass
						class      UpperCAmelCase_						:

												'''simple docstring'''




												UpperCamelCase__    :				Any       						=						None
												UpperCamelCase__    :				Deque._Node | None       						=						None
												UpperCamelCase__    :				Deque._Node | None       						=						None







						class      UpperCAmelCase_						:

												'''simple docstring'''




												UpperCamelCase__    :				Optional[int]       						=						('''_cur''',)






												def __init__(					self   ,							_A	):







																			'''simple docstring'''

																			__SCREAMING_SNAKE_CASE								=      cur






												def __iter__(					self	):







																			'''simple docstring'''

																			return self






												def  _A			(					self	):







																			'''simple docstring'''

																			if self._cur is None:
																										# finished iterating
																										raise StopIteration
																			__SCREAMING_SNAKE_CASE								=      self._cur.val
																			__SCREAMING_SNAKE_CASE								=      self._cur.next_node

																			return val







						def __init__(					self   ,							_A = None	):







													'''simple docstring'''

													__SCREAMING_SNAKE_CASE								=      None
													__SCREAMING_SNAKE_CASE								=      None
													__SCREAMING_SNAKE_CASE								=      0

													if iterable is not None:
																				# append every value to the deque
																				for val in iterable:
																											self.append(_A	)






						def  _A			(					self   ,							_A	):







													'''simple docstring'''

													__SCREAMING_SNAKE_CASE								=      self._Node(_A   ,							_A   ,							_A	)
													if self.is_empty():
																				# front = back
																				__SCREAMING_SNAKE_CASE								=      __SCREAMING_SNAKE_CASE								=      node
																				__SCREAMING_SNAKE_CASE								=      1
													else:
																				# connect nodes
																				__SCREAMING_SNAKE_CASE								=      node
																				__SCREAMING_SNAKE_CASE								=      self._back
																				__SCREAMING_SNAKE_CASE								=      node  # assign new back to the new node

																				self._len += 1

																				# make sure there were no errors
																				assert not self.is_empty(), "Error on appending value."






						def  _A			(					self   ,							_A	):







													'''simple docstring'''

													__SCREAMING_SNAKE_CASE								=      self._Node(_A   ,							_A   ,							_A	)
													if self.is_empty():
																				# front = back
																				__SCREAMING_SNAKE_CASE								=      __SCREAMING_SNAKE_CASE								=      node
																				__SCREAMING_SNAKE_CASE								=      1
													else:
																				# connect nodes
																				__SCREAMING_SNAKE_CASE								=      self._front
																				__SCREAMING_SNAKE_CASE								=      node
																				__SCREAMING_SNAKE_CASE								=      node  # assign new front to the new node

																				self._len += 1

																				# make sure there were no errors
																				assert not self.is_empty(), "Error on appending value."






						def  _A			(					self   ,							_A	):







													'''simple docstring'''

													for val in iterable:
																				self.append(_A	)






						def  _A			(					self   ,							_A	):







													'''simple docstring'''

													for val in iterable:
																				self.appendleft(_A	)






						def  _A			(					self	):







													'''simple docstring'''

													assert not self.is_empty(), "Deque is empty."

													__SCREAMING_SNAKE_CASE								=      self._back
													__SCREAMING_SNAKE_CASE								=      self._back.prev_node  # set new back
													# drop the last node - python will deallocate memory automatically
													__SCREAMING_SNAKE_CASE								=      None

													self._len -= 1

													return topop.val






						def  _A			(					self	):







													'''simple docstring'''

													assert not self.is_empty(), "Deque is empty."

													__SCREAMING_SNAKE_CASE								=      self._front
													__SCREAMING_SNAKE_CASE								=      self._front.next_node  # set new front and drop the first node
													__SCREAMING_SNAKE_CASE								=      None

													self._len -= 1

													return topop.val






						def  _A			(					self	):







													'''simple docstring'''

													return self._front is None






						def __len__(					self	):







													'''simple docstring'''

													return self._len






						def __eq__(					self   ,							_A	):







													'''simple docstring'''

													if not isinstance(_A   ,							_A	):
																				return NotImplemented

													__SCREAMING_SNAKE_CASE								=      self._front
													__SCREAMING_SNAKE_CASE								=      other._front

													# if the length of the dequeues are not the same, they are not equal
													if len(self	) != len(_A	):
																				return False

													while me is not None and oth is not None:
																				# compare every value
																				if me.val != oth.val:
																											return False
																				__SCREAMING_SNAKE_CASE								=      me.next_node
																				__SCREAMING_SNAKE_CASE								=      oth.next_node

													return True






						def __iter__(					self	):







													'''simple docstring'''

													return Deque._Iterator(self._front	)






						def __repr__(					self	):







													'''simple docstring'''

													__SCREAMING_SNAKE_CASE								=      []
													__SCREAMING_SNAKE_CASE								=      self._front
													while aux is not None:
																				# append the values in a list to display
																				values_list.append(aux.val	)
																				__SCREAMING_SNAKE_CASE								=      aux.next_node

													return f"""[{", ".join(repr(_A	) for val in values_list	)}]"""


if __name__ == "__main__":
			import doctest

			doctest.testmod()






