class ModelA(BaseModel):
    name: str
    description: Optional[str] = None
    model_b: ModelB

    @validator("name")
    def lower_username(cls, name: str, values):
        if not name.endswith("A"):
            raise ValueError("name must end in A")
        return name


async def get_model_c() -> ModelC:
    return ModelC(username="test-user", password="test-password")

            if (fileConfigPager.description.startsWith("*")) {
                cb.query().setDescription_Wildcard(fileConfigPager.description);
            } else if (fileConfigPager.description.endsWith("*")) {
                cb.query().setDescription_Prefix(fileConfigPager.description.replaceAll("\\*$", StringUtil.EMPTY));
            } else {
                cb.query().setDescription_MatchPhrase(fileConfigPager.description);

        final Map<String, List<QueryBuilder>> geoMap = new HashMap<>();

        StreamUtil.stream(request.getParameterMap())
                .of(stream -> stream.filter(e -> e.getKey().startsWith("geo.") && e.getKey().endsWith(".point")).forEach(e -> {
                    final String key = e.getKey();
                    for (final String geoField : geoFields) {
                        if (key.startsWith("geo." + geoField + ".")) {

        Xpp3Dom config = toConfig("<file>${test}</file>");

        BeanConfigurationValuePreprocessor preprocessor = (value, type) -> {
            if (value != null && value.startsWith("${") && value.endsWith("}")) {
                return value.substring(2, value.length() - 1);
            }
            return value;
        };

        if (!query.startsWith("*")) {
            queryBuf.append('*');
        }
        queryBuf.append(toLowercaseWildcard(query));
        if (!query.endsWith("*")) {
            queryBuf.append('*');
        }
        final String origQuery = queryBuf.toString();
        context.addFieldLog(Constants.DEFAULT_FIELD, origQuery);

                val sameParamCount = ktCtor.valueParameters.size == ctorParamTypes.size
                val sameParamTypes = sameParamCount && ctorParamTypes.mapIndexed { idx, paramType -> paramType.endsWith(ktCtor.valueParameters[idx].typeReference!!.text) }.all { it }
                sameName && sameParamCount && sameParamTypes
            }
            ?.isDocumentedAsSince(version) == true
    }

    private

            source.visit { FileVisitDetails fvd ->
                if (fvd.isDirectory()) {
                    return
                }
                if (!fvd.getFile().getName().endsWith(".xml")) {
                    return
                }

                String newFileName = fvd.file.name.replaceAll('.xml$', '.html')

            if (dataConfigPager.description.startsWith("*")) {
                cb.query().setDescription_Wildcard(dataConfigPager.description);
            } else if (dataConfigPager.description.endsWith("*")) {
                cb.query().setDescription_Prefix(dataConfigPager.description.replaceAll("\\*$", StringUtil.EMPTY));
            } else {
                cb.query().setDescription_MatchPhrase(dataConfigPager.description);

      when {
        token == null -> {
          // Value is "double-quoted". That's valid and our regex group already strips the quotes.
          parameter.groups[3]!!.value
        }
        token.startsWith("'") && token.endsWith("'") && token.length > 2 -> {
          // If the token is 'single-quoted' it's invalid! But we're lenient and strip the quotes.
          token.substring(1, token.length - 1)
        }
        else -> token
      }

                    int num = Integer.parseInt(expression.substring(2, expression.length() - 1));
                    filters.add(new HighestVersionFilter(num));
                } else if ("l".equals(expression)) {
                    filters.add(new LowestVersionFilter());
                } else if (expression.startsWith("l(") && expression.endsWith(")")) {