def logger=(logger)
      case logger
      when false, nil then @logger = NullLogger.new
      when true then @logger = default_logger
      else
        @logger = logger if logger.respond_to?(:info)
      end
    end
def logger=(logger)
      case logger
      when false, nil then @logger = NullLogger.new
      when true then @logger = default_logger
      else
        @logger = logger if logger.respond_to?(:info)
      end
    end
If you want to, set the logger manually to any output you'd like. Or pass false or nil to disable logging entirely.

 @since 0.2.0