# File common/lib/symbiosis/config_file.rb, line 53
    def self.erb=(klazz)
      raise ArgumentError unless klazz.is_a?(Class)
      raise ArgumentError, "ERB class #{klazz.inspect} is not descended from Erubis::Eruby" unless klazz.ancestors.include?(Erubis::Eruby)
      @erb = klazz
    end