# File lib/mcollective/connector/rabbitmq.rb, line 485
      def get_env_or_option(env, opt, default=nil)
        return ENV[env] if ENV.include?(env)
        return @config.pluginconf[opt] if @config.pluginconf.include?(opt)
        return default if default

        raise("No #{env} environment or plugin.#{opt} configuration option given")
      end