    # File lib/fog/aws/requests/compute/describe_placement_groups.rb, line 23
            def describe_placement_groups(filters = {})
              params = Fog::AWS.indexed_filters(filters)
              request({
                'Action'    => 'DescribePlacementGroups',
                :idempotent => true,
                :parser     => Fog::Parsers::Compute::AWS::DescribePlacementGroups.new
              }.merge!(params))
            end