code: def load(self, content):
          
          if self.filename is None:
              if os.path.isfile(content):
                  self.filename = content
                  stream        = open(self.filename, 'rb')
              else:
                  stream        = content
  
              pkts = yaml.load(stream)
              pkts = handle_includes(pkts)
              for pkt in pkts:
                  self.add(pkt)
  
              if type(stream) is file:
                  stream.close()
docs: Loads Packet Definitions from the given YAML content into this
          Telemetry Dictionary.  Content may be either a filename
          containing YAML content or a YAML string.
  
          Load has no effect if this Command Dictionary was already
          instantiated with a filename or YAML content.