added note

Author: DinisCruz

osbot_utils/helpers/Safe_Id.py

@@ -12,4 +12,7 @@ def __new__(cls, value=None, max_length=SAFE_ID__MAX_LENGTH):
         return str.__new__(cls, sanitized_value)
 
     # def __str__(self):
-    #     return self
+    #     return self
+
+
+# note: here is the regex applied on safe_id:  REGEX__SAFE_ID_REGEX       = re.compile(r'[^a-zA-Z0-9_-]')