add comment (#547)

Author: jduerholt

bofire/strategies/strategy.py

@@ -23,6 +23,11 @@ def __init__(
         data_model: DataModel,
     ):
         self.domain = data_model.domain
+        # if data_model.seed is None (no explicit seed provided by the user),
+        # we draw a random seed from the default random number generator
+        # This is done to ensure reproducibility of the strategy,
+        # even if the user does not provide a seed one can extract the used seed
+        # from the strategy object via `strategy.seed`.
         self.seed = data_model.seed or np.random.default_rng().integers(1000)
         self.rng = np.random.default_rng(self.seed)
         self._experiments = None