def list_silo_users
      r = execute(make_xml('MultiTenantUserListingRequest'), '1.2')
      arr = []
      if r.success
        r.res.elements.each('MultiTenantUserListingResponse/MultiTenantUserSummaries/MultiTenantUserSummary') do |user|
          arr << MultiTenantUserSummary.parse(user)
        end
      end
      arr
    end
def list_silo_users
      r = execute(make_xml('MultiTenantUserListingRequest'), '1.2')
      arr = []
      if r.success
        r.res.elements.each('MultiTenantUserListingResponse/MultiTenantUserSummaries/MultiTenantUserSummary') do |user|
          arr << MultiTenantUserSummary.parse(user)
        end
      end
      arr
    end
Retrieve a list of all users the user is authorized to view or manage.

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