Worked on improving documentation accuracy for float vector serialization in the ydb-platform/ydb repository. Addressed a documentation bug by updating the description of the struct.pack format used to convert float vectors to bytes, ensuring the documentation matched the actual Python implementation. This change clarified the data type representation during serialization, reducing the risk of misinterpretation for future contributors and users. The update was delivered as a single, traceable commit, maintaining a clear audit trail. The work primarily involved Python and technical documentation skills, focusing on aligning written guidance with code behavior to support maintainability and correct usage of the serialization process.