private static Map<String, String> updatedConfigs(final String formattedConfigs) {
        final String[] parts = formattedConfigs.split(",");
        final Map<String, String> updatedConfigs = new HashMap<>();
        for (final String part : parts) {
            final String[] keyValue = part.split("=");
            updatedConfigs.put(keyValue[KEY], keyValue[VALUE]);
        }
        return updatedConfigs;
    }
Takes a string with keys and values separated by '=' and each key value pair
separated by ',' for example max.block.ms=5000,retries=6,request.timeout.ms=6000

@param formattedConfigs the formatted config string
@return HashMap with keys and values inserted
streams/src/test/java/org/apache/kafka/streams/tests/StreamsBrokerDownResilienceTest.java