Worked on stabilizing the C API surface for the facebookresearch/faiss repository, focusing on resolving a compatibility issue in the IndexShards component. Addressed a naming mismatch by aligning the getter and setter for own_indices, which ensured the correct export of the faiss_IndexShards_set_own_indices function and maintained external binding functionality. The work involved migrating the c_api from 'fields' to 'indices' terminology, clarifying the intended semantics for downstream users. Utilized C++ and API design skills to implement and document these changes, improving maintainability and preventing future regressions in c_api export behavior for developers working with software engineering and external bindings.