code: def track_memory(self):
      res = psutil.virtual_memory()
      self.data.update(
          {
              "memory.total": res.total,
              "memory.used": res.used,
              "memory.available": res.available,
          }
      )
  
imports: import time
  from pathlib import Path
  import psutil
  from labml import logger
  from labml.internal.computer.monitor.process import ProcessMonitor
  from labml.logger import Text
  from labml.utils.notice import labml_notice
label_desc: Use image node_id 8 for calling the Scanner obj's underlying member method code with example usage: obj.track_memory() without return types