code: def dump(self, obj):
      obj_type = type(obj)
      handler = self._dumpers.get(type(obj))
      if handler:
          attr, v = handler(self, obj)
          return {
              FIELD_TYPE: self._types_to_encoding[obj_type],
              FIELD_ANNOTATION: attr,
              FIELD_INLINE_VALUE: v,
          }
      else:
          # We will see if the connection can encode and transfer this object
          # This is primarily used to transfer a reference to an object
          try:
              json_obj = base64.b64encode(
                  pickle.dumps(
                      self._connection.pickle_object(obj),
                      protocol=defaultProtocol,
                  )
              ).decode("utf-8")
          except ValueError as e:
              raise RuntimeError("Unable to dump non base type: %s" % e)
          return {FIELD_TYPE: -1, FIELD_INLINE_VALUE: json_obj}
  
imports: import base64
  import functools
  import pickle
  import sys
  from collections import OrderedDict, defaultdict, namedtuple
  from copy import copy
  from datetime import datetime, timedelta
label_desc: Use image node_id 4 for calling the DataTransferer obj's underlying member method code with example usage: obj.dump(obj) and returns: dict, dict