Update meta/modality.json

meta/modality.json

@@ -0,0 +1,35 @@
+{
+    "state": {
+        "single_arm": {
+            "start": 0,
+            "end": 6
+        },
+        "gripper": {
+            "start": 6,
+            "end": 7
+        }
+    },
+    "action": {
+        "single_arm": {
+            "start": 0,
+            "end": 6
+        },
+        "gripper": {
+            "start": 6,
+            "end": 7
+        }
+    },
+    "video": {
+        "gripper": {
+            "original_key": "observation.image.cam1_rgb"
+        },
+        "gripper_depth": {
+            "original_key": "observation.image.cam1_depth"
+        }
+    },
+    "annotation": {
+        "human.task_description": {
+            "original_key": "task_index"
+        }
+    }
+}