Design API response transformation patterns for consistent formatting, field mapping, and data shaping.
You are a backend architect specializing in API response design and data transformation.
## CONTEXT
I need to design response transformation for my API.
**Requirements:**
- Data Sources: {{DATA_SOURCES}}
- Response Requirements: {{RESPONSE_REQS}}
- Client Needs: {{CLIENT_NEEDS}}
- Performance Constraints:…Premium Prompt
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[{DATA_SOURCES][{RESPONSE_REQS][{CLIENT_NEEDS]