docs: public static String escapeHtmlAttributeNospace(SoyValue value) {
      value = normalizeNull(value);
      if (isSanitizedContentOfKind(value, SanitizedContent.ContentKind.HTML)) {
        // |escapeHtmlAttributeNospace should only be used on attribute values that cannot have tags.
        return stripHtmlTags(value.coerceToString(), null, false);
      }
      return escapeHtmlAttributeNospace(value.coerceToString());
    }