set requirement_table to None during initialization

jessegrabowski · jessegrabowski · commit 7acc7e53c3f6 · 2025-01-10T20:09:02.000+08:00
diff --git a/pymc_extras/statespace/core/statespace.py b/pymc_extras/statespace/core/statespace.py
@@ -257,6 +257,7 @@ def __init__(
         self.kalman_smoother = KalmanSmoother()
         self.make_symbolic_graph()
 
+        self.requirement_table = None
         self._populate_prior_requirements()
         self._populate_data_requirements()
 
