# Basic flow with package tool using cascading inputs
This is a flow demonstrating the use of a tool with cascading inputs which frequently used in situations where the selection in one input field determines what subsequent inputs should be shown, 
and it helps in creating a more efficient, user-friendly, and error-free input process.

Tools used in this flow：
- `python` Tool

Connections used in this flow:
- None

## Prerequisites

Install promptflow sdk and other dependencies:
```bash
pip install -r requirements.txt
```

## Run flow

- Test flow
```bash
pf flow test --flow .
```