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from dataclasses import dataclass
from apischema import Undefined, UndefinedType, serialize, serialized
from apischema.json_schema import serialization_schema
@dataclass
class Foo:
@serialized
def bar(self) -> int | UndefinedType:
return Undefined
assert serialize(Foo, Foo()) == {}
assert serialization_schema(Foo) == {
"$schema": "http://json-schema.org/draft/2020-12/schema#",
"type": "object",
"properties": {"bar": {"type": "integer"}},
"additionalProperties": False,
}
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