---
title: "Importing packages"
slug: "importing-packages"
abstract: "How to import packages inside scripts."
---
# Importing packages

Users can import internal packages (Stylelabs.M.SDK) or external packages (System) inside scripts. All scripts in Sitecore Content Hub are [restricted](https://doc.sitecore.com/ch/en/developers/cloud-dev/script-restriction.html "Script restriction").

> [!important]
> You can import only [permitted packages](https://doc.sitecore.com/ch/en/developers/cloud-dev/script-restriction.html "Script restriction") to restricted scripts.

## SDK packages

Import [SDK packages](https://doc.sitecore.com/ch/en/developers/cloud-dev/overview.html "Overview") as follows:

```csharp
using {package_name};

```

- **Example:**

```csharp
using Stylelabs.M.Sdk.Clients.IEntitiesClient;

```

## System packages

Import system packages as follows:

```csharp
using {package_name};

```

- **Example:**

```csharp
using System.Math;

```