Allow creation of avi video.

src/holt59/aoc/utils/files.py

@@ -10,12 +10,17 @@ class SimpleFileHandler(FileHandler):
         self.logger: Final = logger
         self.folder: Final = folder
 
-    def create(self, filename: str, content: bytes, text: bool = False):
+    def make_path(self, filename: str) -> Path:
+        return self.folder.joinpath(filename)
+
+    def notify_created(self, path: Path): ...
+
+    def _create(self, path: Path, content: bytes, text: bool = False):
         if text:
             for line in content.decode("utf-8").splitlines():
                 self.logger.info(line)
         else:
             self.folder.mkdir(exist_ok=True)
-            with open(self.folder.joinpath(filename), "wb") as fp:
+            with open(path, "wb") as fp:
                 fp.write(content)
-            return self.folder.joinpath(filename)
+            return path