Resolve GH-69

Co-authored-by: [email protected]

Author: shorodilov

src/calc/func.py

@@ -3,18 +3,18 @@
 
 """
 
-from typing import List, Union
+from typing import List
 
 
-def get_square(number: Union[int, float]) -> Union[int, float]:
+def get_square(number: int) -> int:
     """
     Calculate the square value of a given number
 
     :param number: The input number for which the square value is calculated.
-    :type number: int | float
+    :type number: int
 
     :return: the square value of the input number
-    :rtype: int | float
+    :rtype: int
 
     """