code: def __first_measurement(self):
      return (
          self.__last_cpu_usage_measurement_timestamp_nanos is None
          or self.__last_cpu_cumulative_usage_nanos is None
      )
  
file_path: neptune-client/src/neptune/common/hardware/cgroup/cgroup_monitor.py
imports: import time
  from neptune.common.hardware.cgroup.cgroup_filesystem_reader import CGroupFilesystemReader
  from neptune.common.hardware.system.system_monitor import SystemMonitor
label_desc: Use image node_id 7 for calling the CGroupMonitor obj's underlying member method code with example usage: obj.__first_measurement() and returns: unknown