def method_missing(meth, value)
      meth = sanitize_setter_method(meth)

      if defaults.key?(meth)
        @options[meth] = value
      else
        super
      end
    end
def method_missing(meth, value)
      meth = sanitize_setter_method(meth)

      if defaults.key?(meth)
        @options[meth] = value
      else
        super
      end
    end
Public: set options where the method name
 matches a key