Merge branch 'master' into issue-88

CHANGELOG.md

@@ -37,7 +37,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 - Fix `ResampleWithDistributionTransform` working with categorical columns ([#82](https://github.com/etna-team/etna/pull/82))
--
+- `TSDataset._hierarchical_structure_from_level_columns` to support `pandas>=1.4,<1.5`([#107](https://github.com/etna-team/etna/pull/107))
 - Fix links from tinkoff-ai/etna to etna-team/etna ([#47](https://github.com/etna-team/etna/pull/47))
 - Fix CI job `cron-delete-untagged-images` ([#95](https://github.com/etna-team/etna/pull/95))
 - Rendering table of contents in notebooks ([#1343](https://github.com/tinkoff-ai/etna/pull/1343))

etna/datasets/tsdataset.py

@@ -808,7 +808,9 @@ def _hierarchical_structure_from_level_columns(
         for next_level_name in level_columns[1:]:
             cur_level_to_next_level_edges = df_level_columns[[cur_level_name, next_level_name]].drop_duplicates()
             cur_level_to_next_level_adjacency_list = cur_level_to_next_level_edges.groupby(cur_level_name).agg(list)
-            level_structure.update(cur_level_to_next_level_adjacency_list.to_records())
+
+            # support for pandas>=1.4, <1.5
+            level_structure.update(cur_level_to_next_level_adjacency_list.itertuples(name=None))
             cur_level_name = next_level_name
 
         hierarchical_structure = HierarchicalStructure(