public org.apache.skywalking.apm.network.ebpf.profiling.v3.EBPFProfilingStackType mapping() {
        return mapping;
    }
eBPF Profiling stack type means that the element in stack from where
oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/profiling/ebpf/storage/EBPFProfilingStackType.java