Query filter for the Query operation operation. Evaluates the query results and returns only
            the matching values. If you specify more than one condition, then by default all of the
            conditions must evaluate to true. To match only some conditions, set ConditionalOperator to Or.
            Note: Conditions must be against non-key properties.
            
 Declaration Syntax
 Declaration Syntax| C# | 
public List<ScanCondition> QueryFilter { get; set; }