Amanie El Hajj developed structured output support for the GoogleGenAIChatGenerator in the haystack-core-integrations repository, enabling users to define output schemas using Pydantic models or JSON Schema. She introduced a new response_format parameter, allowing for more reliable and predictable API responses in Python-based backend systems. Her work included implementing end-to-end tests to validate the integration and updating documentation with practical examples to guide developers. By focusing on API development, backend engineering, and robust testing practices, Amanie addressed the need for structured, schema-driven outputs, enhancing both reliability and developer experience within the project during the March 2026 development cycle.