# File rbot/dbhash.rb, line 87
    def initialize(bot, key, absfilename=false)
      @bot = bot
      @key = key
      if absfilename && File.exist?(key)
        # db already exists, use it
        @db = DBTree.open_db(key)
      elsif absfilename
        # create empty db
        @db = DBTree.create_db(key)
      elsif File.exist?(@bot.botclass + "/#{key}.db")
        # db already exists, use it
        @db = DBTree.open_db(@bot.botclass + "/#{key}.db")
      else
        # create empty db
        @db = DBTree.create_db(@bot.botclass + "/#{key}.db")
      end
    end