emoji support

akn/utils/prefixprem.py

@@ -36,7 +36,7 @@ def command(commands: Union[str, List[str]], case_sensitive: bool = False):
                     return await process_command(flt, client, message, without_prefix, command_re, username)
 
         if text.startswith(stored_prefix):
-            without_prefix = text[len(stored_prefix):].strip()
+            without_prefix = text[len(stored_prefix.encode("utf-16-le")) // 2:].strip()
             return await process_command(flt, client, message, without_prefix, command_re, username)
 
         return False