Merge pull request #10 from musslick/feat/hex

change output type of 'hexadecimal' function

Author: snamazova

src/utils.py

@@ -73,7 +73,8 @@ def element_wise_multiply(a: np.array, b: np.array) -> np.array:
 
     return np.multiply(a, b)
 
-def return_hexadecimal(a: int) -> float:
+# change output type of return_hexadecimal function
+def return_hexadecimal(a: int) -> str:
     '''
     ...