updates

Backend/venv/lib/python3.12/site-packages/ruamel/yaml/mergevalue.py

@@ -0,0 +1,39 @@
+
+from __future__ import annotations
+
+if False:  # MYPY
+    from typing import Any, Dict, List, Union, Optional, Iterator  # NOQA
+
+
+merge_attrib = '_yaml_merge'
+
+
+class MergeValue:
+    attrib = merge_attrib
+
+    def __init__(self) -> None:
+        self.value: List[Any] = []
+        self.sequence = None
+        self.merge_pos: Optional[int] = None  # position of merge in the mapping
+
+    def __getitem__(self, index: Any) -> Any:
+        return self.value[index]
+
+    def __setitem__(self, index: Any, val: Any) -> None:
+        self.value[index] = val
+
+    def __repr__(self) -> Any:
+        return f'MergeValue({self.value!r})'
+
+    def __len__(self) -> Any:
+        return len(self.value)
+
+    def append(self, elem: Any) -> Any:
+        self.value.append(elem)
+
+    def extend(self, elements: Any) -> None:
+        self.value.extend(elements)
+
+    def set_sequence(self, seq: Any) -> None:
+        # print('mergevalue.set_sequence node', node.anchor)
+        self.sequence = seq