# CloudFormationParameter Object

## Description

Parameters for a CloudFormation stack.

## Properties

### key

Key (name) of the CloudFormation parameter. 

Type: `string`

Required: Yes

### key

Value of the CloudFormation parameter. Required when `usePreviousValue` is `false`.

Type: `string`

Required: Conditional

### usePreviousValue

Indicates that the previous value for the key will be used.

Type: `boolean`

Required: No

Default: `false`

## Sample JSON

```javascript
{
    "key": "param1",
    "value": "value1",
    "usePreviousValue": false
}
```