Documentation Generator

Generate documentation for the following code. Produce all three outputs below.

**1. README Section**
Write a clear README section covering:
- What this code does (one paragraph, no fluff)
- Installation or setup steps (if applicable)
- Usage examples with realistic inputs and outputs
- Configuration options or environment variables
- Any gotchas or limitations worth knowing

**2. API Documentation**
For each public function, method, or endpoint:
- Name and signature
- What it does (one sentence)
- Parameters: name, type, required/optional, description
- Return value: type and description
- Errors or exceptions it can throw
- A short usage example

**3. Inline Documentation**
Add JSDoc (JavaScript/TypeScript), docstrings (Python), or the appropriate format for the language:
- Every public function and class gets a doc comment
- Include @param, @returns, @throws (or equivalent)
- Skip obvious getters/setters
- Add brief comments for any non-obvious logic

Keep the tone technical and direct. No marketing language. Write for a developer who needs to use this code tomorrow.

```
{{code}}
```