code: def validate(config):
      '''
      Validate the beacon configuration
      '''
  
      VALID_ITEMS = [
          'type', 'bytes_sent', 'bytes_recv', 'packets_sent',
          'packets_recv', 'errin', 'errout', 'dropin',
          'dropout'
      ]
  
      # Configuration for load beacon should be a list of dicts
      if not isinstance(config, list):
          return False, ('Configuration for network_info beacon must be a list.')
      else:
  
          _config = {}
          list(map(_config.update, config))
  
          for item in _config.get('interfaces', {}):
              if not isinstance(_config['interfaces'][item], dict):
                  return False, ('Configuration for network_info beacon must '
                                 'be a list of dictionaries.')
              else:
                  if not any(j in VALID_ITEMS for j in _config['interfaces'][item]):
                      return False, ('Invalid configuration item in '
                                     'Beacon configuration.')
      return True, 'Valid beacon configurationf validate(config):
      '''
      Validate the beacon configuration
      '''
  
      VALID_ITEMS = [
          'type', 'bytes_sent', 'bytes_recv', 'packets_sent',
          'packets_recv', 'errin', 'errout', 'dropin',
          'dropout'
      ]
  
      # Configuration for load beacon should be a list of dicts
      if not isinstance(config, list):
          return False, ('Configuration for network_info beacon must be a list.')
      else:
  
          _config = {}
          list(map(_config.update, config))
  
          for item in _config.get('interfaces', {}):
              if not isinstance(_config['interfaces'][item], dict):
                  return False, ('Configuration for network_info beacon must '
                                 'be a list of dictionaries.')
              else:
                  if not any(j in VALID_ITEMS for j in _config['interfaces'][item]):
                      return False, ('Invalid configuration item in '
                                     'Beacon configuration.')
      return True, 'Valid beacon configuration'
docs: Validate the beacon configuration