def METHOD_NAME():
    """Return the CPU model name."""
    if platform.machine() == "aarch64":
        _, stdout, _ = run_cmd("cat /proc/cpuinfo | grep 'CPU part' | uniq")
    else:
        _, stdout, _ = run_cmd("cat /proc/cpuinfo | grep 'model name' | uniq")
    info = stdout.strip().split(sep=":")
    assert len(info) == 2
    raw_cpu_model = info[1].strip()
    if platform.machine() == "x86_64":
        return raw_cpu_model
    return CPU_DICT[CpuVendor.ARM].get(raw_cpu_model, "Unknown")