GetSummarizationsParameters parameters = new GetSummarizationsParameters();
            
// Start and Length parameters allow you to request variables partially.
// Default values of these parameters:
//parameters.Start = 0;
//parameters.Length = -1;
            
// Query specifies a filter on variables to be returned.
// The query below requests variables which could be used in a thematic mapping layer.
//parameters.Query = "mappable:true"; 
            
getSummarizationsTask.ExecuteAsync(parameters, new AsyncResponder(resultHandler, faultHandler));