Enum values
| Name | Value | Description |
|---|---|---|
| RetainLeading | 0 | Items are removed from the end of the collection. |
| RetainTrailing | 1 | Items are removed from the start of the collection. |
| RetainExtreme | 2 | Items are removed from the middle of the collection. |
| RetainInner | 3 | Items are removed the start and end of the collection. |
| Interpolate | 4 | Items are removed at regular, but discretised intervals from the collection. |