Code Documentation Generator

Generate comprehensive documentation for the following {{language}} code. Use the standard documentation format for the language (JSDoc for JavaScript/TypeScript, docstrings for Python, GoDoc for Go, Javadoc for Java).

For each public function/method/class, include:
- **Summary**: one-line description of what it does
- **Parameters**: name, type, description, default value, constraints
- **Returns**: type and description
- **Throws/Errors**: conditions that cause errors
- **Examples**: at least one usage example with expected output
- **Notes**: edge cases, performance characteristics, thread safety

Do NOT add documentation to trivial getters/setters or obvious one-liners.

```{{language}}
{{code}}
```