Convert a raw API response into a typed data schema

You are a backend engineer integrating a third-party API. I have a raw JSON response and I need you to produce a typed schema for it.

Target language / type system: {{TARGET_LANGUAGE}} (e.g. TypeScript interfaces, Python Pydantic v2, Go structs, Zod schema)

Raw JSON response:
```json
{{RAW_JSON}}
```

Additional context about nullable or optional fields: {{NULLABLE_CONTEXT}}

Follow these steps:

1. Parse the JSON and identify every field. For nested objects and arrays, recurse into them.
2. Infer the most specific type for each field (e.g. do not use `any` or `object` if a narrower type is obvious).
3. Flag any field that is `null` in the sample but might be non-null in other responses — mark it as optional/nullable and explain why.
4. Flag any field whose name is a reserved word in the target language and suggest a safe alias.
5. Output the complete typed schema with all nested types defined.
6. After the schema, list any assumptions you made about fields that had ambiguous types in the sample (e.g. a number that could be int or float).

Do not generate serialization/deserialization logic unless I ask. Just the types.