You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: group.rb
    path of file: ./repos/bundler/lib/bundler/vendor/thor/lib/thor
    
    the code of the file until where you have to start completion: require_relative "base"

# Bundler::Thor has a special class called Bundler::Thor::Group. The main difference to Bundler::Thor class
# is that it invokes all commands at once. It also include some methods that allows
# invocations to be done at the class method, which are not available to Bundler::Thor
# commands.
class Bundler::Thor::Group
  class << self
    # The description for this Bundler::Thor::Group. If none is provided, but a source root
    # exists, tries to find the USAGE one folder above it, otherwise searches
    # in the superclass.
    #
    # ==== Parameters
    # description<String>:: The description for this Bundler::Thor::Group.
    #
    def desc(description = nil)
      if description
        @desc = description
      else
        @desc ||= from_superclass(:desc, nil)
      end
    end

    # Prints help informatio
    
    def invoke_from_option(*names, &block)
      options = names.last.is_a?(Hash) ? names.pop : {}
      verbose = options.fetch(:verbose, :white)

      names.each do |name|
        unless class_options.key?(name)
          raise ArgumentError, "You have to define the option #{name.inspect} " \
                              "before setting invoke_from_option."
        end

        invocations[name] = true
        invocation_blocks[name] = block if block_given?

        class_eval <<-METHOD, __FILE__, __LINE__ + 1
          def _invoke_from_option_#{name.to_s.gsub(/\W/, '_')}
            return unless options[#{name.inspect}]

            value = options[#{name.inspect}]
            value = #{name.inspect} if TrueClass === value
            klass, command = self.class.prepare_for_invocation(#{name.inspect}, value)

            if klass
              say_status :invoke, value, #{verbose.inspect}
              block = self.class.invocation_blocks[#{name.inspect}]
              _invoke_for_class_method klass, command, &block
            else
              say_status :error, %(\#{value} [not found]), :red
            end
          end