Support authenticating with refresh token and app key

dropboxdrivefs/core.py

@@ -1,4 +1,6 @@
 import logging
+from typing import Optional
+
 import dropbox.files
 import requests
 from dropbox.exceptions import ApiError
@@ -48,11 +50,22 @@ def _call(self, _, method="get", path=None, data=None, redirect=True, offset=0,
         out.raise_for_status()
         return out
 
-    def connect(self, token=None, client=None):
+    def connect(
+        self,
+        token: Optional[str] = None,
+        client: Optional[dropbox.Dropbox] = None,
+        *,
+        app_key: Optional[str],
+        refresh_token: Optional[str] = None,
+    ):
         if client is not None:
             self.dbx = client
         elif token is not None:
-            self.dbx = dropbox.Dropbox(token)
+            self.dbx = dropbox.Dropbox(
+                token,
+                oauth2_refresh_token=refresh_token,
+                app_key=app_key,
+            )
         else:
             raise ValueError("You must provide either a token or a dropbox client object.")