# File lib/fog/aws/requests/redshift/describe_cluster_subnet_groups.rb, line 25
        def describe_cluster_subnet_groups(cluster_subnet_group_name=nil, marker=nil,max_records=nil)
          path = "/"
          params = {
            :idempotent => true,
            :headers    => {},
            :path       => path,
            :method     => :get,
            :query      => {},
            :parser     => Fog::Parsers::Redshift::AWS::DescribeClusterSubnetGroups.new
          }

          params[:query]['Action']                 = 'DescribeClusterSubnetGroups'
          params[:query]['ClusterSubnetGroupName'] = cluster_subnet_group_name if cluster_subnet_group_name
          params[:query]['Marker']                 = marker if marker
          params[:query]['MaxRecords']             = max_records if max_records

          request(params)
        end