# File lib/rds/rds.rb, line 37
        def initialize(aws_access_key_id=nil, aws_secret_access_key=nil, params={})
            uri = ENV['RDS_URL'] ? URI.parse(ENV['RDS_URL']) : nil
            init({ :name => 'RDS',
                   :default_host => uri ? uri.host : DEFAULT_HOST,
                   :default_port => uri ? uri.port : DEFAULT_PORT,
                   :default_service => uri ? uri.path : DEFAULT_PATH,
                   :default_protocol => uri ? uri.scheme : DEFAULT_PROTOCOL,
            :api_version => API_VERSION },
                 aws_access_key_id || ENV['AWS_ACCESS_KEY_ID'],
                 aws_secret_access_key|| ENV['AWS_SECRET_ACCESS_KEY'],
                 params)
        end