> For the complete documentation index, see [llms.txt](https://docs.skeddly.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.skeddly.com/data-types/minimumtokeepperiodparameters-object.md).

# MinimumToKeepPeriodParameters Object

## Description

Minimum to keep and period parameters for a grandfather-father-son delete scheme.

## Properties

### minimumToKeep

Minimum number of items to preserve.

Type: `integer`

Required: Yes

### numPeriods

Number of periods to preserve.

Type: `integer`

Required: No

## Sample JSON

```javascript
{
    "minimumToKeep": 1
    "numPeriods": 7
}
```