default_banner

# File lib/bundler/vendor/thor/lib/thor/parser/argument.rb, line 55
    def default_banner
      case type
      when :boolean
        nil
      when :string, :default
        human_name.upcase
      when :numeric
        "N"
      when :hash
        "key:value"
      when :array
        "one two three"
      end
    end