# File lib/bugzilla/bug.rb, line 107
    def get_comments(bugs)
      params = {}

      if bugs.kind_of?(Array) then
        params['ids'] = bugs
      elsif bugs.kind_of?(Integer) ||
          bugs.kind_of?(String) then
        params['ids'] = [bugs]
      else
        raise ArgumentError, sprintf("Unknown type of arguments: %s", bugs.class)
      end

      result = comments(params)

      # not supporting comment_ids. so drop "comments".
      result['bugs']
    end