'Returns the scanner\'s current row value and advances to the next
row in the table.  When there are no more rows in the table, or a key
greater-than-or-equal-to the scanner\'s specified stopRow is reached,
an empty list is returned.
@return a TRowResult containing the current row and a map of the columns to TCells.
@throws IllegalArgument if ScannerID is invalid
@throws NotFound when the scanner reaches the end
Parameters:
- id: id of a scanner returned by scannerOpen'

def scannerGet(self, id):

    pass
