# Format Demo
This sample demonstrates the different output formats supported by Genkit Python.
## Formats Demonstrated
1. **Text (`text`)**: Raw text output.
2. **JSON (`json`)**: Structured JSON object output.
3. **Array (`array`)**: JSON array of items.
4. **Enum (`enum`)**: Single value from a predefined list.
5. **JSONL (`jsonl`)**: Newline-delimited JSON objects (great for streaming).
## Running
1. Set your `GEMINI_API_KEY` environment variable.
2. Run the sample:
### Monitoring and Running
For an enhanced development experience, use the provided `run.sh` script to start the sample with automatic reloading:
```bash
./run.sh
```
This script uses `watchmedo` to monitor changes in:
- `src/` (Python logic)
- `../../packages` (Genkit core)
- `../../plugins` (Genkit plugins)
- File patterns: `*.py`, `*.prompt`, `*.json`
Changes will automatically trigger a restart of the sample. You can also pass command-line arguments directly to the script, e.g., `./run.sh --some-flag`.
```bash
export GEMINI_API_KEY=your-key
./run.sh
```
Then use the Genkit Developer UI to test the flows.
