# File lib/travis/cli/command.rb, line 226
      def usage_for(prefix, method)
        usage = "travis #{prefix}"
        method = method(method)
        if method.respond_to? :parameters
          method.parameters.each do |type, name|
            name = name.upcase
            name = "[#{name}]"   if type == :opt
            name = "[#{name}..]" if type == :rest
            usage << " #{name}"
          end
        elsif method.arity != 0
          usage << " ..."
        end
        usage << " [OPTIONS]"
      end