Update lib/pymedphys/_mosaiq/sessions.py
adding type hints to parameters
@@ -7,7 +7,7 @@ from pymedphys._imports import sklearn
from pymedphys import mosaiq
-def cluster_sessions(tx_datetimes, interval=timedelta(hours=3)):
+def cluster_sessions(tx_datetimes: List[datetime], interval=timedelta(hours=3)):
"""Clusters a list of datetime objects representing tx beam delivery times
Uses the scikit-learn hierarchical clustering algorithm
