diff --git a/sleap_roots/series.py b/sleap_roots/series.py
index 76acb1f..5b98228 100644
--- a/sleap_roots/series.py
+++ b/sleap_roots/series.py
@@ -366,7 +366,7 @@ def get_crown_points(self, frame_idx: int) -> np.ndarray:
         return crown_pts
 
 
-def find_all_series(data_folders: Union[str, List[str]]) -> List[str]:
+def find_all_h5_series(data_folders: Union[str, List[str]]) -> List[str]:
     """Find all .h5 series from a list of folders.
 
     Args:
@@ -384,6 +384,10 @@ def find_all_series(data_folders: Union[str, List[str]]) -> List[str]:
     return h5_series
 
 
+def find_all_slp_series(data_folders: Union[str, List[str]]) -> List[str]:
+    """Find all .slp series from a list of folders."""
+
+
 def imgfig(
     size: Union[float, Tuple] = 6, dpi: int = 72, scale: float = 1.0
 ) -> matplotlib.figure.Figure: