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: specific_file.rb
    path of file: ./repos/truffleruby/lib/mri/rubygems/source
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
##
# A source representing a single .gem file.  This is used for installation of
# local gems.

class Gem::Source
    
  def download(spec, dir = nil) # :nodoc:
    return @path if spec == @spec
    raise Gem::Exception, "Unable to download '#{spec.full_name}'"
  end

  def pretty_print(q) # :nodoc:
    q.group 2, "[SpecificFile:", "]" do
      q.breakable
      q.text @path
    end
  end

  ##
  # Orders this source against +other+.
  #
  # If +other+ is a SpecificFile from a different gem name +nil+ is returned.
  #
  # If +other+ is a SpecificFile from the same gem name the versions are
  # compared using Gem::Version#<=>
  #
  # Otherwise Gem::Source#<=> is used.

  def <=>(other)
    case other
    when Gem::Source::SpecificFile then
      return nil if @spec.name != other.spec.name

      @spec.version <=> other.spec.version
    else
      super
    end
  end