def method_missing(s, *a, &b)
      if s.to_s.end_with?('=')
      #  stop = s.to_s.chomp('=')
      #  if !SPECIAL_OPTIONS.include?(stop)
      #   (class << self; self; end).module_eval %{
      #      def station_#{stop}
      #        #{a.first}
      #      end
      #    }
      #  end
      else
        if @context.respond_to?(s)
          @context.__send__(s,*a,&b)
        else
          super(s, *a, &b)
        end
      end
    end
def method_missing(s, *a, &b)
      if s.to_s.end_with?('=')
      #  stop = s.to_s.chomp('=')
      #  if !SPECIAL_OPTIONS.include?(stop)
      #   (class << self; self; end).module_eval %{
      #      def station_#{stop}
      #        #{a.first}
      #      end
      #    }
      #  end
      else
        if @context.respond_to?(s)
          @context.__send__(s,*a,&b)
        else
          super(s, *a, &b)
        end
      end
    end
Set initial attribute defaults.
def initialize_defaults
  #@group = [DEFAULT_GROUP]
end