def METHOD_NAME(self, mapping):
    node_name_size = struct.unpack("<L", mapping.read(4))[0]
    node_name = mapping.read(node_name_size).decode("ascii")
    split_name = node_name.split("{")
    assert len(split_name) == 2
    return CallGraphNode(split_name[0], split_name[1][:-1])