# Sandbox.SerializedCollection.Add

## Overload 1

```csharp
bool Add(object value)
```

### Parameters

- `value` (`object`)

### Returns

`bool`

## Overload 2

```csharp
bool Add(object key, object value)
```

### Parameters

- `key` (`object`)
- `value` (`object`)

### Returns

`bool`

Declared in [Sandbox.SerializedCollection](/api/Sandbox.SerializedCollection).
Assembly: `Sandbox.System`.