Remove default arguments

keys.py

@@ -46,8 +46,9 @@ def get_instance_actor_key(base_dir: str, domain: str) -> str:
 
 
 def get_person_key(nickname: str, domain: str, base_dir: str,
-                   key_type: str = 'public', debug: bool = False):
+                   key_type: str, debug: bool):
     """Returns the public or private key of a person
+    key_type can be private or public
     """
     if key_type == 'private':
         key_pem = _get_local_private_key(base_dir, nickname, domain)

posts.py

@@ -3024,7 +3024,8 @@ def send_post(signing_priv_key_pem: str, project_version: str,
                           auto_cw_cache)
 
     # get the senders private key
-    private_key_pem = get_person_key(nickname, domain, base_dir, 'private')
+    private_key_pem = get_person_key(nickname, domain, base_dir,
+                                     'private', debug)
     if len(private_key_pem) == 0:
         return 6