Integrate new base_downloader class

bulkredditdownloader/site_downloaders/self_post.py

@@ -1,9 +1,11 @@
 #!/usr/bin/env python3
 
 import logging
+from typing import Optional
 
 from praw.models import Submission
 
+from bulkredditdownloader.authenticator import Authenticator
 from bulkredditdownloader.resource import Resource
 from bulkredditdownloader.site_downloaders.base_downloader import BaseDownloader
 
@@ -14,8 +16,10 @@ class SelfPost(BaseDownloader):
     def __init__(self, post: Submission):
         super().__init__(post)
 
-    def download(self):
-        return Resource(self.post, self.post.url, bytes(self.export_to_string()))
+    def find_resources(self, authenticator: Optional[Authenticator] = None) -> list[Resource]:
+        out = Resource(self.post, self.post.url)
+        out.content = self.export_to_string()
+        return out
 
     def export_to_string(self) -> str:
         """Self posts are formatted here"""