# ML Functions Separation - Implementation Summary

## What Was Done

Successfully separated Machine Learning functions from the core NotionHelper class using **inheritance-based approach**.

### File Changes

#### 1. **Created: `src/notionhelper/ml_logger.py`** (NEW)
- New `MLNotionHelper` class that **inherits from `NotionHelper`**
- Moved ML-specific methods:
  - `log_ml_experiment()` - Logs experiments with metrics, plots, and artifacts
  - `create_ml_database()` - Creates Notion databases optimized for ML tracking
  - `dict_to_notion_schema()` - Converts dictionaries to Notion schema
  - `dict_to_notion_props()` - Converts dictionaries to Notion properties

#### 2. **Modified: `src/notionhelper/helper.py`**
- Removed the 4 ML-specific methods listed above
- **Kept all core Notion API methods**:
  - Database/data source operations
  - Page creation and retrieval
  - File upload and embedding
  - Block management

#### 3. **Updated: `src/notionhelper/__init__.py`**
```python
from .helper import NotionHelper
from .ml_logger import MLNotionHelper

__all__ = ["NotionHelper", "MLNotionHelper"]
```

#### 4. **Updated: `examples/ml_demo.py`**
- Changed import: `from notionhelper import MLNotionHelper`
- Changed initialization: `nh = MLNotionHelper(NOTION_TOKEN)`

## Usage

### Simple, Single Instantiation:
```python
from notionhelper import MLNotionHelper

# One line - that's it!
ml_tracker = MLNotionHelper(notion_token)

# Use ML methods
ml_tracker.log_ml_experiment(...)
ml_tracker.create_ml_database(...)

# Also available: all NotionHelper methods
ml_tracker.get_data_source(...)
ml_tracker.upload_file(...)
```

## Architecture Benefits

✅ **Clean Separation** - ML logic isolated in dedicated module
✅ **Single Instantiation** - No extra code needed
✅ **Minimal Changes** - Just inherit and move methods
✅ **Backward Compatible** - `NotionHelper` still available separately
✅ **Extensible** - Easy to add other trackers (e.g., `ImageNotionHelper`)
✅ **Elegant** - Inheritance makes intent clear

## File Structure
```
src/notionhelper/
├── helper.py          # Core Notion API methods
├── ml_logger.py       # ML experiment tracking (NEW)
└── __init__.py        # Exports both classes
```
