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Support x-keep-typed-in-additional-properties in Python model generator #3665

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Support x-keep-typed-in-additional-properties in Python model generator #3665

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Support x-keep-typed-in-additional-properties in Python model generator
charlie-zhang109 Jun 8, 2026
e032471
docs: annotate _keep_typed_in_additional_properties as a cross-SDK se…
charlie-zhang109 Jun 8, 2026
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5 changes: 5 additions & 0 deletions .generator/src/generator/templates/model_generic.j2
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,11 @@ class {{ name }}(ModelNormal):
{%- if model.nullable %}
_nullable = True
{%- endif %}
{%- if model.get("x-keep-typed-in-additional-properties") %}
# Cross-SDK semantic marker. In Python, typed fields are already accessible via
# bracket notation (model["key"]) through _data_store, so no runtime change is needed.
_keep_typed_in_additional_properties = True
{%- endif %}

{%- if model.properties %}
@cached_property
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