lib/chatterbot/config.rb
def load_config(params={})
      read_only_data  = global_config.merge(bot_config).merge(params)
      @config = Chatterbot::ConfigManager.new(config_file, read_only_data)
    end
def load_config(params={})
      read_only_data  = global_config.merge(bot_config).merge(params)
      @config = Chatterbot::ConfigManager.new(config_file, read_only_data)
    end
load in the config from the assortment of places it can be specified.