def list_silos
      r = execute(make_xml('SiloListingRequest'), '1.2')
      arr = []
      if r.success
        r.res.elements.each('SiloListingResponse/SiloSummaries/SiloSummary') do |silo|
          arr << SiloSummary.parse(silo)
        end
      end
      arr
    end
def list_silos
      r = execute(make_xml('SiloListingRequest'), '1.2')
      arr = []
      if r.success
        r.res.elements.each('SiloListingResponse/SiloSummaries/SiloSummary') do |silo|
          arr << SiloSummary.parse(silo)
        end
      end
      arr
    end
Retrieve a list of all silos the user is authorized to view or manage.

 @return [Array[SiloSummary]] Array of SiloSummary objects.