public String fullyQualifiedMethodName() {
        return fullyQualifiedMethodName;
    }
Provides the fully-qualified method name, e.g. {@code ConsumerRebalanceListener.onPartitionsRevoked}. This
is used for log messages.

@return Fully-qualified method name
clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerRebalanceListenerMethodName.java