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19 lines
567 B
19 lines
567 B
4 years ago
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from . import _OnSetAttrType, Attribute
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from typing import TypeVar, Any, NewType, NoReturn, cast
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_T = TypeVar("_T")
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def frozen(
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instance: Any, attribute: Attribute, new_value: Any
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) -> NoReturn: ...
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def pipe(*setters: _OnSetAttrType) -> _OnSetAttrType: ...
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def validate(instance: Any, attribute: Attribute[_T], new_value: _T) -> _T: ...
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# convert is allowed to return Any, because they can be chained using pipe.
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def convert(
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instance: Any, attribute: Attribute[Any], new_value: Any
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) -> Any: ...
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_NoOpType = NewType("_NoOpType", object)
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NO_OP: _NoOpType
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