@TestOnly
  static void clearSerializationFilter() {
    serializationFilter = defaultSerializationFilter;
  }
Initializes the optional serialization "accept list" if the user has requested it in the
DistributionConfig

@param config the DistributedSystem configuration
@param services SanctionedSerializablesService that might have classes to acceptlist
geode-core/src/main/java/org/apache/geode/internal/InternalDataSerializer.java