feat: add JSONFrameInterval

raillabel/json_format/frame_interval.py

@@ -0,0 +1,16 @@
+# Copyright DB InfraGO AG and contributors
+# SPDX-License-Identifier: Apache-2.0
+
+from __future__ import annotations
+
+from pydantic import BaseModel
+
+
+class JSONFrameInterval(BaseModel):
+    """A frame interval defines a starting and ending frame number as a closed interval.
+
+    That means the interval includes the limit frame numbers.
+    """
+
+    start: int
+    end: int