Add template to generate list of versions used in the API docs.
user
```ruby
require 'fileutils'
require 'set'
require 'stringio'

include Helpers::ModuleHelper

def init
  generate_changelog
end


def all_objects
  run_verifier(Registry.all())
end

def namespace_objects
  run_verifier(Registry.all(:class, :module))
end


def changelog_filename
  'Changelog SU201x.log'
end

VERSION_MATCH = /^\D+([0-9.]+)(?:\s+M(\d+))?$/

def generate_changelog
  output = StringIO.new

  versions = Hash.new
  all_objects.each { |object|
    version_tag = object.tag(:version)
    next if version_tag.nil?
    version = version_tag.text

    # Don't list SU6 or older.
    next if version.match(VERSION_MATCH).captures[0].to_i <= 6

    versions[version] ||= {}
    versions[version][object.type] ||= []
    versions[version][object.type] << object.path
  }
  versions = versions.sort { |a, b|
    v1, mv1 = a[0].match(VERSION_MATCH).captures
    v2, mv2 = b[0].match(VERSION_MATCH).captures
    if v1 == v2
      (mv2 || '0').to_i <=> (mv1 || '0').to_i
    else
      v2.to_f <=> v1.to_f
    end
  }

  output.puts "FEATURES = ["
  versions.each { |version, features|
    output.puts ""
    output.puts "  {"
    output.puts "    version: '#{version}',"
    output.puts "    types: {"
    features.sort.each { |type, objects|
      unless objects.empty?
        output.puts "      #{type}: ["
        objects.sort.each { |object|
          output.puts "        '#{object}',"
        }
        output.puts "      ],"
      end
    }
    output.puts "    },"
    output.puts "  },"
  }
  output.puts "]"

  puts output.string
  exit # Avoid the YARD summary
end
```
assistant