PY-20757 Fixed: Incorrect warning about expected attribute

Make min skeletons generic.

python/helpers/python-skeletons/__builtin__.py

@@ -209,6 +209,16 @@ def map(function, sequence, *sequence_1):
     pass
 
 
+def min(*args, key=None, default=None):
+    """Return the smallest item in an iterable or the smallest of two or more
+    arguments.
+
+    :type args: tuple[T]
+    :rtype: T
+    """
+    pass
+
+
 def next(iterator, default=None):
     """Return the next item from the iterator.
 

python/helpers/python-skeletons/builtins.py

@@ -225,7 +225,8 @@ def min(*args, key=None, default=None):
     """Return the smallest item in an iterable or the smallest of two or more
     arguments.
 
-    :rtype: object | unknown
+    :type args: tuple[T]
+    :rtype: T
     """
     pass