some new features

.venv/lib/python3.12/site-packages/holidays/countries/aland_islands.py

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+#  holidays
+#  --------
+#  A fast, efficient Python library for generating country, province and state
+#  specific sets of holidays on the fly. It aims to make determining whether a
+#  specific date is a holiday as fast and flexible as possible.
+#
+#  Authors: Vacanza Team and individual contributors (see CONTRIBUTORS file)
+#           dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
+#           ryanss <ryanssdev@icloud.com> (c) 2014-2017
+#  Website: https://github.com/vacanza/holidays
+#  License: MIT (see LICENSE file)
+
+from holidays.countries.finland import Finland
+from holidays.mixins.child_entity import ChildEntity
+
+
+class HolidaysAX(ChildEntity, Finland):
+    """Åland Islands holidays.
+
+    Alias of a Finnish subdivision that is also officially assigned
+    its own country code in ISO 3166-1.
+
+    !!! note "Note"
+        Åland's Autonomy Day is currently added in Finland's implementation.
+
+    References:
+        * <https://en.wikipedia.org/wiki/Public_holidays_in_Åland>
+        * <https://en.wikipedia.org/wiki/Åland's_Autonomy_Day>
+    """
+
+    country = "AX"
+    parent_entity = Finland
+    parent_entity_subdivision_code = "01"
+    # Åland Islands got its autonomy on May 7th, 1920.
+    start_year = 1921
+
+
+class AlandIslands(HolidaysAX):
+    pass
+
+
+class AX(HolidaysAX):
+    pass
+
+
+class ALA(HolidaysAX):
+    pass