> For the complete documentation index, see [llms.txt](https://calnix.gitbook.io/eth-dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://calnix.gitbook.io/eth-dev/learning-solidity/module-2/import/importing-in-foundry.md).

# Importing in Foundry

* Foundry is able to grab to download directly from github.

### **Example**

You want to use the IERC20.sol interface provided by Yield at: <https://github.com/yieldprotocol/yield-utils-v2/blob/main/contracts/token/IERC20.sol>

### **Get dependencies**

#### **First we need to download the repo into our dependencies folder (lib):**

```bash
forge install yieldprotocol/yield-utils-v2
```

![organization/repo](/files/6rr9JzVPCjaUQgrHzuV7)

Forge will install the repo into our project directory (repo can be found inside lib)

![lib](/files/SVCkNGbwyQmjuO5VLElY)

.**gitmodules** will be updated to reflect the dependencies:

![.gitignore](/files/sssO0a1MkMRaXZopA6Pi)

#### Run forge remappings to check how forge is mapping out your dependencies

> forge remappings

![](/files/5TlR2Nbv0r2Ikdsavtzm)

`yield-utils-v2/` is mapped to directory `lib/yield-utils-v2/contracts`

**This informs us how to craft our import statement.**

### Craft import statement&#x20;

```solidity
// points to lib/yield-utils-v2/contracts/token/IERC20.sol
import "yield-utils-v2/token/IERC20.sol";
```

![](/files/XmXrk4RG5FxAdmuDVjy9)

* Now when **`forge build`** is run, there should not be any issues.


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