[Create an anonymous class]

anon_class.rb

  # Initialize
  #
  # @return [void]
  def initialize
    # Setup a simple logger for running locally (if full $logger not available)
    $logger ||= Class.new do
      # Print info message
      #
      # @param msg [String] Message to print
      # @return [void]
      def info(msg)
        puts "INFO: #{msg}"
      end

      # Print warning message
      #
      # @param msg [String] Message to print
      # @return [void]
      def warn(msg)
        puts "WARN: #{msg}"
      end
    end.new
  end