


from __future__ import annotations

from collections.abc import Iterator
from typing import Any





class        lowercase_				:


							def __init__(   self			,    _UpperCAmelCase		):







													"""simple docstring"""


													a_					=		data
													a_					=		None






							def __str__(   self		):







													"""simple docstring"""


													return f"{self.data}"





class        lowercase_				:


							def __init__(   self		):







													"""simple docstring"""


													a_					=		None
													a_					=		None


							def __iter__(   self		):







													"""simple docstring"""


													a_					=		self.front
													while node:
																			yield node.data
																			a_					=		node.next


							def __len__(   self		):







													"""simple docstring"""


													return len(tuple(iter(self		)		)		)


							def __str__(   self		):







													"""simple docstring"""


													return " <- ".join(str(_UpperCAmelCase		) for item in self		)


							def 						lowercase__     (   self		):







													"""simple docstring"""


													return len(self		) == 0


							def 						lowercase__     (   self			,    _UpperCAmelCase		):







													"""simple docstring"""


													a_					=		Node(_UpperCAmelCase		)
													if self.is_empty():
																			a_					=		node
													else:
																			assert isinstance(self.rear			,    _UpperCAmelCase		)
																			a_					=		node
																			a_					=		node


							def 						lowercase__     (   self		):







													"""simple docstring"""


													if self.is_empty():
																			raise IndexError("""dequeue from empty queue"""		)
													assert isinstance(self.front			,    _UpperCAmelCase		)
													a_					=		self.front
													a_					=		self.front.next
													if self.front is None:
																			a_					=		None
													return node.data






							def 						lowercase__     (   self		):







													"""simple docstring"""


													a_					=		None


if __name__ == "__main__":
	from doctest import testmod

	testmod()



import abc
import copy
import dataclasses
from dataclasses import dataclass
from typing import ClassVar, Dict, Type, TypeVar

from ..features import Features


A_    :					Tuple             =TypeVar("""T""", bound="""TaskTemplate""")





@dataclass(frozen=UpperCamelCase__)
class        lowercase_				( abc.ABC):






							"""simple docstring"""







							snake_case_        =		42
							snake_case_        =		42
							snake_case_        =		42


							def 						lowercase__     (   self			,    _UpperCAmelCase		):







													"""simple docstring"""


													return copy.deepcopy(self		)


							@property
							def 						lowercase__     (   self		):







													"""simple docstring"""


													return Features(**self.input_schema			,    **self.label_schema		)


							@property
							@abc.abstractmethod
							def 						lowercase__     (   self		):







													"""simple docstring"""


													raise NotImplementedError






							@classmethod
							def 						lowercase__     (   cls			,    _UpperCAmelCase		):







													"""simple docstring"""


													a_					=		{f.name for f in dataclasses.fields(cls		)}
													return cls(**{k: v for k, v in template_dict.items() if k in field_names}		)