Added class method

Author: MomIsBestFriend

pandas/_libs/tslibs/timestamps.pyx

@@ -336,6 +336,16 @@ class Timestamp(_Timestamp):
         """
         return cls(datetime.combine(date, time))
 
+    @classmethod
+    def fromisocalendar(cls, year, week, day):
+        """
+        Timestamp.fromisocalendar(year, week, day)
+
+        Return a new Timestamp corresponding to the
+        ISO calendar date specified by year, week and day.
+        """
+        return cls(datetime.fromisocalendar(year, week, day))
+
     def __new__(cls, object ts_input=_no_input,
                 object freq=None, tz=None, unit=None,
                 year=None, month=None, day=None,