def get_groups(options = {})
      limit = options[:limit] || 1000000
      response = make_request(:get, group + "#{options[:extra]}" + "?startGroup=#{options[:start]}", headers: {'content-type' => 'application/atom+xml'})
      pages = fetch_pages(response, limit, :feed)

      return_all(pages)
    end
def get_groups(options = {})
      limit = options[:limit] || 1000000
      response = make_request(:get, group + "#{options[:extra]}" + "?startGroup=#{options[:start]}", headers: {'content-type' => 'application/atom+xml'})
      pages = fetch_pages(response, limit, :feed)

      return_all(pages)
    end
get_groups retrieves all the groups from the domain

 get_groups

 get_groups returns the final response from Google.