fix: add missing EntityV3APISpecInterface model and inflector entry

[nogates]

Summary

• Fixes a bug in .generator/src/generator/openapi.py where additionalProperties: false was incorrectly treated as a pure-map schema, causing oneOf schemas with that constraint to be silently skipped
• Adds the previously missing lib/datadog_api_client/v2/models/entity_v3_api_spec_interface.rb (now generated correctly by the fixed generator)
• Adds the corresponding "v2.entity_v3_api_spec_interface" => "EntityV3APISpecInterface" inflector entry

Root cause

child_models() skips schemas that look like pure maps (additionalProperties: <schema> with no properties). The guard condition checked only "additionalProperties" in schema, which matched both real map schemas AND schemas with additionalProperties: false (a JSON Schema keyword meaning "no extra properties allowed").

EntityV3APISpecInterface is a oneOf with additionalProperties: false — it's not a map at all. Because it matched the guard, it was never yielded from child_models() and therefore never generated.

The fix mirrors the pattern already used in type_to_ruby() in the same file: only treat additionalProperties as a map type when its value is not in (None, False).

Test plan

• Run ./generate locally — entity_v3_api_spec_interface.rb should now appear in the output (not be deleted)
• Verify EntityV3APISpec deserialization works when interface is present in the response payload

🤖 Generated with Claude Code

[datadog-official]

 

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ℹ️ Info

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🧪 All tests passed
❄️ No new flaky tests detected

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