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Use TypeIs for reference models #3592

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gaborbernat merged 1 commit into from
Jul 7, 2026
+2 −1
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Use TypeIs for reference models #3592

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3 changes: 2 additions & 1 deletion src/datamodel_code_generator/reference.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@

import inflect

from datamodel_code_generator.model.base import DataModel
from datamodel_code_generator.types import DataType


Expand All @@ -53,7 +54,7 @@ def _is_data_type(value: object) -> TypeIs[DataType]:
return isinstance(value, DataType_)


def _is_data_model(value: object) -> bool:
def _is_data_model(value: object) -> TypeIs[DataModel]:
"""Check if value is a DataModel instance."""
from datamodel_code_generator.model.base import DataModel as DataModel_ # noqa: PLC0415

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