Batch predictions

Closes #135 (closed)

dan/predict/__init__.py

@@ -140,4 +140,12 @@ def add_predict_parser(subcommands) -> None:
         type=int,
         required=False,
     )
+    parser.add_argument(
+        "--batch-size",
+        help="Size of prediction batches.",
+        type=int,
+        default=1,
+        required=False,
+    )
+
     parser.set_defaults(func=run)