some new features

.venv/lib/python3.12/site-packages/pandas/util/__init__.py

@@ -0,0 +1,29 @@
+def __getattr__(key: str):
+    # These imports need to be lazy to avoid circular import errors
+    if key == "hash_array":
+        from pandas.core.util.hashing import hash_array
+
+        return hash_array
+    if key == "hash_pandas_object":
+        from pandas.core.util.hashing import hash_pandas_object
+
+        return hash_pandas_object
+    if key == "Appender":
+        from pandas.util._decorators import Appender
+
+        return Appender
+    if key == "Substitution":
+        from pandas.util._decorators import Substitution
+
+        return Substitution
+
+    if key == "cache_readonly":
+        from pandas.util._decorators import cache_readonly
+
+        return cache_readonly
+
+    raise AttributeError(f"module 'pandas.util' has no attribute '{key}'")
+
+
+def capitalize_first_letter(s):
+    return s[:1].upper() + s[1:]