output_data, output_ui, has_subgraph = get_output_data(obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb) File "C:\Users\Rahel ...

Those APIs are used by pickle and provide a great way to handle escaped bytes sequences in much the same way as str (bytes)/repr (bytes) works. In Python 2, these were used by the string_escape codec, ...