def METHOD_NAME(self):
    """We send protobufs from our C++ code to python for visualization.
    The C++ logger encodes a serialized anyproto with base64 and sends it over.
    We need to apply the reverse sequence of operations to unpack the data.
    """
    payload = self.request[0]
    result = base64.b64decode(payload)
    msg = self.proto_class()
    any_msg = Any.FromString(result)
    any_msg.Unpack(msg)
    self.handle_callback(msg)