completed the favorite colors count function

friend_functions.py

@@ -30,7 +30,11 @@ def count_favorite_colors(people, name):
         >>> count_favorite_colors(family, "Raphael Chambers")
         1
     """
-    raise NotImplementedError()
+    for person in people:
+        if person.get("name") == name:
+            fav_colors = len(person.get("favorite_colors"))
+            return fav_colors
+    return None
 
 def people_who_like_color(people, color):
     """Returns a list containing only those people who like the given color.