LEGO Traces

Traces correspond to compressed numpy array files (.npz) containing the following arrays:

• An array called "initial" corresponding to the initial frame for the task.
• A number M x N of arrays, where M is the number of different possible tags for frames during a step, and N corresponds to the number of steps in the tag. Each of these arrays is named following the convention "step_<step index (two digits, 0-padded)>_<frame tag>".