# File lib/rds/right_rds_interface.rb, line 156 def describe_db_instances(params={}, &block) item, params = AwsUtils::split_items_and_params(params) params = params.dup params['DBInstanceIdentifier'] = item if item result = [] incrementally_list_items('DescribeDBInstances', DescribeDbInstancesParser, params) do |response| result += response[:db_instances] block ? block.call(response) : true end result end