code: def update(self):
          
          # Init new stats
          stats = self.get_init_value()
  
          # Grab quicklook stats: CPU, MEM and SWAP
          if self.input_method == 'local':
              # Get the latest CPU percent value
              stats['cpu'] = cpu_percent.get()
              stats['percpu'] = cpu_percent.get(percpu=True)
              # Use the psutil lib for the memory (virtual and swap)
              stats['mem'] = psutil.virtual_memory().percent
              stats['swap'] = psutil.swap_memory().percent
          elif self.input_method == 'snmp':
              # Not available
              pass
  
          # Optionnaly, get the CPU name/frequency
          # thanks to the cpuinfo lib: https://github.com/workhorsy/py-cpuinfo
          if cpuinfo_tag:
              cpu_info = cpuinfo.get_cpu_info()
              #  Check cpu_info (issue #881)
              if cpu_info is not None:
                  stats['cpu_name'] = cpu_info.get('brand', 'CPU')
                  if 'hz_actual_raw' in cpu_info:
                      stats['cpu_hz_current'] = cpu_info['hz_actual_raw'][0]
                  if 'hz_advertised_raw' in cpu_info:
                      stats['cpu_hz'] = cpu_info['hz_advertised_raw'][0]
  
          # Update the stats
          self.stats = stats
  
          return self.stats
docs: Update quicklook stats using the input method.