def matched_attribute_method(method_name)
        matches = self.class.send(:attribute_method_matchers_matching, method_name)
        matches.detect { |match| attribute_method?(match.attr_name) }
      end
def matched_attribute_method(method_name)
        matches = self.class.send(:attribute_method_matchers_matching, method_name)
        matches.detect { |match| attribute_method?(match.attr_name) }
      end
Returns a struct representing the matching attribute method.
 The struct's attributes are prefix, base and suffix.