If given, this array will be modified to hold additional information
taken from the Scan Response:
number - Number of entries returned
stepsize - Step size
position - Position of term
status - Scan status
Возвращаемые значения
Returns an array (0..n-1) where n is the number of terms returned. Each
value is a pair where the first item is the term, and the second item is
the result-count.