| Name | Type | Description | Notes |
|---|---|---|---|
| empty | bool | Checks whether the collection is empty (contains no elements). | [optional] [readonly] |
| element | mixed | Removes the specified element from the collection, if it is found. | [optional] |
| keys | int[] | Gets all keys/indices of the collection. | [optional] [readonly] |
| values | string[] | Gets all values of the collection. | [optional] [readonly] |
| iterator | mixed | [optional] [readonly] |