switch load with loads because of string object to check

scripts/convert-dir.py

@@ -61,7 +61,7 @@ def handle_file_in_input_dir(args, db, filename, input_dir):
     doc: Document = utility.handle_incoming_file_with_optional_force(filepath, args.force_strategy)
 
     logger.info("Validating created json by running it through the shared-file-format decoding mechanism.")
-    decoded_doc: Document = decoder.load(doc.to_json())
+    decoded_doc: Document = decoder.loads(doc.to_json())
     logger.info("Filename from created shared-file-format document: " + decoded_doc.filename)
 
     if doc is None: