> ## Documentation Index
> Fetch the complete documentation index at: https://www.getmaxim.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# TestLoggerLangchain03x

> Test Logger Langchain 03X functionality for Tests integration.

[View module source on GitHub](https://github.com/maximhq/maxim-py/blob/main/maxim/tests/test_logger_langchain_03x.py)

#### addition\_tool

```python theme={null}
@tool
def addition_tool(a, b)
```

Add two integers together.

#### subtraction\_tool

```python theme={null}
@tool
def subtraction_tool(a, b)
```

Subtract two integers.