ZSCAN
Syntax
        ZSCAN key cursor [MATCH pattern] [COUNT count]
- Available since:
 - 2.8.0
 - Time complexity:
 - O(1) for every call. O(N) for a complete iteration, including enough command calls for the cursor to return back to 0. N is the number of elements inside the collection.
 - ACL categories:
 - 
              
                
@read,@sortedset,@slow, 
See SCAN for ZSCAN documentation.