# General Exports

This page explains the available **client-side** exports for the **r\_megaphone** and their usage. These exports allow you to interact with the script programmatically from other resources.

***

### 1. Exports Overview

#### 1.1 Get Aerial Water Quantity

```lua
exports['r_aerialfire']:GetAerialWaterQuantity(netId)
```

**Description:**\
Returns the current **water quantity** of a specific aerial firefighting vehicle using its network ID.

**Parameters:**

* `netId`: The network ID of the aerial firefighting vehicle.

**Returns:**

* `number`: The quantity of water remaining. Returns `nil` if the entity doesn't exist or isn't tracked.

**Example Usage:**

```lua
local netId = NetworkGetNetworkIdFromEntity(vehicle)
local quantity = exports['r_aerialfire']:GetAerialWaterQuantity(netId)
```

***

#### 1.2 Set Aerial Water Quantity

```lua
exports['r_aerialfire']:SetAerialWaterQuantity(netId, quantity)
```

**Description:**\
Sets a new **water quantity** for a specific aerial firefighting vehicle and syncs the change with the server.

**Parameters:**

* `netId`: The network ID of the aerial firefighting vehicle.
* `quantity`: The new amount of water to set.

**Example Usage:**

```lua
local netId = NetworkGetNetworkIdFromEntity(vehicle)
exports['r_aerialfire']:SetAerialWaterQuantity(netId, 1500)
```


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