@Override
    protected String getDescription() {
        return (
            "DefaultImageNameSubstitutor (composite of '" +
            configurationFileImageNameSubstitutor.getDescription() +
            "' and '" +
            prefixingImageNameSubstitutor.getDescription() +
            "')"
        );
    }
Testcontainers' default implementation of {@link ImageNameSubstitutor}.
Delegates to {@link ConfigurationFileImageNameSubstitutor} followed by {@link PrefixingImageNameSubstitutor}.
core/src/main/java/org/testcontainers/utility/DefaultImageNameSubstitutor.java