Fixed precommit and types and passing tests

Author: dtronmans

luxonis_ml/data/exporters/prepared_ldf.py

@@ -3,6 +3,8 @@
 
 import polars as pl
 
+from luxonis_ml.data import LuxonisDataset
+
 
 class PreparedLDF:
     """Lightweight container for LDF data, ready for export."""
@@ -18,7 +20,7 @@ def __init__(
         self.grouped_image_sources = grouped_image_sources
 
     @classmethod
-    def from_dataset(cls, ldf: "LuxonisDataset") -> "PreparedLDF":
+    def from_dataset(cls, ldf: LuxonisDataset) -> "PreparedLDF":
         """Prepare a dataset for export into the LDF representation."""
         splits = ldf.get_splits()
         if splits is None: