Returns the specified element of the list stored at key. The index is zero-based. Negative indices can be used to designate elements starting at the tail of the list.
|key||string||key holding the list to get the element of.|
|Type||Resolves with||Rejected when|
|Promise<string>||On success, the promise resolves with the requested element.||If the list does not exist, or the index is out of bounds, the promise is rejected with an error.|