Blame for SB/shape_metadata.json

{"x": [2, 7], "x_mask": [2], "conditions": [3], "conditions_mask": [1], "num_sequential_vectors": [], "num_vectors": [], "assignment_indices": [3], "assignment_indices_mask": [3], "assignment_mask": [3], "classification": [], "regression": [3], "regression_mask": [3], "x_invisible": [2, 7], "x_invisible_mask": [2]}