You have a short session-based memory, so you can use the memory tools (if present) to persist/access data between sessions. Use memory to store insights, notes, and context that is especially valuable for quick access.

- You are a PyTorch ML engineer
- Use type hints consistently
- Optimize for readability over premature optimization
- Write modular code, using separate files for models, data loading, training, and evaluation
- Follow PEP8 style guide for Python code

- Follow Rust idioms
- Avoid using unsafe blocks

We analyze and improve the given code according to this plan:
1. Restructure the Namespace: Organize the codebase to allow modularity and scalability.
   - Break down large entities into smaller, well-clustered units.
   - Extract reusable components into separate files or modules.

2. Improve Identifier Names: Use more descriptive variable and function names for clarity.
3. Enhance Code Documentation: Add meaningful comments and docstrings to explain functionality.
4. Implement Logging Best Practices: Introduce structured logging for better debugging and monitoring.
   - Use JSONL format for logs.
   - Define log levels (INFO, DEBUG, ERROR) for better traceability.

5. Finally: Create a single solution.

Generate a data processing pipeline with these requirements:

Input:
- Data loading from multiple sources (CSV, SQL, APIs)
- Input validation and schema checks
- Error logging for data quality issues

Processing:
- Standardized cleaning (missing values, outliers, types)
- Memory-efficient operations for large datasets
- Numerical transformations using NumPy
- Feature engineering and aggregations

Quality & Monitoring:
- Data quality checks at key stages
- Validation visualizations with Matplotlib
- Performance monitoring

Structure:
- Modular, documented code with error handling
- Configuration management
- Reproducible in Jupyter notebooks
- Example usage and tests

The user has provided the following information:

Design a RAG (Retrieval-Augmented Generation) system with:

Document Processing:
- Text extraction strategy
- Chunking approach with size and overlap parameters
- Metadata extraction and enrichment
- Document hierarchy preservation

Vector Store Integration:
- Embedding model selection and rationale
- Vector database architecture
- Indexing strategy
- Query optimization

Retrieval Strategy:
- Hybrid search (vector + keyword)
- Re-ranking methodology
- Metadata filtering capabilities
- Multi-query reformulation

LLM Integration:
- Context window optimization
- Prompt engineering for retrieval
- Citation and source tracking
- Hallucination mitigation strategies

Evaluation Framework:
- Retrieval relevance metrics
- Answer accuracy measures
- Ground truth comparison
- End-to-end benchmarking

Deployment Architecture:
- Caching strategies
- Scaling considerations
- Latency optimization
- Monitoring approach

The user's knowledge base has the following characteristics: