Class
Common
```kotlin
class CollectionInfo(val rowCount: Int, val columnCount: Int)
```
Information about the collection.
A collection of items has `rowCount` rows and `columnCount` columns. For example, a vertical list
is a collection with one column, as many rows as the list items that are important for
accessibility; A table is a collection with several rows and several columns.
#### Parameters
| | |
| --- | --- |
| rowCount | the number of rows in the collection, or -1 if unknown |
| columnCount | the number of columns in the collection, or -1 if unknown |