    # File lib/fog/aws/requests/rds/describe_db_snapshots.rb, line 19
            def describe_db_snapshots(opts={})
              params = {}
              params['DBInstanceIdentifier'] = opts[:identifier] if opts[:identifier]
              params['DBSnapshotIdentifier'] = opts[:snapshot_id] if opts[:snapshot_id]
              params['Marker'] = opts[:marker] if opts[:marker]
              params['MaxRecords'] = opts[:max_records] if opts[:max_records]
              request({
                'Action'  => 'DescribeDBSnapshots',
                :parser   => Fog::Parsers::AWS::RDS::DescribeDBSnapshots.new
              }.merge(params))
            end