Gets the element from an SRP List at the given index.
The value at the given index, "" otherwise.
|Handle||Handle to an existing SRP List (REQUIRED)|
|Index||The index of the element to get (REQUIRED)|
The GetAt service returns the element located at the given index. If the index is out of bounds, "" is returned. SRP Lists, like all BASIC+ lists, use 1-based indexing. So, the first item in the list is at index position 1, not index position 0.