code: def put_object(self, object_id, value):
          
          # Make sure that the value is not an object ID.
          if isinstance(value, ObjectID):
              raise TypeError(
                  "Calling 'put' on an ray.ObjectID is not allowed "
                  "(similarly, returning an ray.ObjectID from a remote "
                  "function is not allowed). If you really want to "
                  "do this, you can wrap the ray.ObjectID in a list and "
                  "call 'put' on it (or return it).")
  
          # Serialize and put the object in the object store.
          try:
              self.store_and_register(object_id, value)
          except pyarrow.PlasmaObjectExists:
              # The object already exists in the object store, so there is no
              # need to add it again. TODO(rkn): We need to compare the hashes
              # and make sure that the objects are in fact the same. We also
              # should return an error code to the caller instead of printing a
              # message.
              logger.info(
                  "The object with ID {} already exists in the object store."
                  .format(object_id))
          except TypeError:
              # This error can happen because one of the members of the object
              # may not be serializable for cloudpickle. So we need these extra
              # fallbacks here to start from the beginning. Hopefully the object
              # could have a `__reduce__` method.
              register_custom_serializer(type(value), use_pickle=True)
              warning_message = ("WARNING: Serializing the class {} failed, "
                                 "so are are falling back to cloudpickle."
                                 .format(type(value)))
              logger.warning(warning_message)
              self.store_and_register(object_id, value)
docs: Put value in the local object store with object id objectid.
  
          This assumes that the value for objectid has not yet been placed in the
          local object store.
  
          Args:
              object_id (object_id.ObjectID): The object ID of the value to be
                  put.
              value: The value to put in the object store.
  
          Raises:
              Exception: An exception is raised if the attempt to store the
                  object fails. This can happen if there is already an object
                  with the same ID in the object store or if the object store is
                  full.