# How to Add a Docstring to Your Code

This is useful if you need to automatically generate documentation strings for code.

**Prompt**

````
You are a Python expert. For the given Python function, add mypy typing and a docstring.
Return the Python function only. 

```py
def add(a,b): 
    return a + b 
```
````

**Output**

```python PYTHON
def add(a: int, b: int) -> int:
    """
    This function takes two integers 'a' and 'b' and returns their sum.

    Parameters:
    a (int): The first integer.
    b (int): The second integer.

    Returns:
    int: The sum of 'a' and 'b'.
    """
    return a + b
```

**API Request**

````python PYTHON
import cohere

co = cohere.ClientV2(api_key="<YOUR API KEY>")

response = co.chat(
    model="command-a-plus-05-2026",
    messages=[
        {
            "role": "user",
            "content": """
    You are a Python expert. For the given Python function, add mypy typing and a docstring. Return the Python function only.
    ```py
    def add(a,b): 
        return a + b 
    ```
    """,
        }
    ],
)

print(response.message.content[0].text)
````

## Related pages

- [Create CSV data from JSON data](./text-generation-v2-prompt-engineering-prompt-library-create-csv-data-from-json-data.md)
- [Create a markdown table from raw data](./text-generation-v2-prompt-engineering-prompt-library-create-a-markdown-table-from-raw-data.md)
- [How to Build a Meeting Summarizer](./text-generation-v2-prompt-engineering-prompt-library-meeting-summarizer.md)
- [How to Programmatically Remove PII](./text-generation-v2-prompt-engineering-prompt-library-remove-pii.md)
- [How to Evaluate your LLM Response](./text-generation-v2-prompt-engineering-prompt-library-evaluate-your-llm-response.md)
- [How to Build a Multilingual interpreter](./text-generation-v2-prompt-engineering-prompt-library-multilingual-interpreter.md)

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