fix: docstrings

Author: spline2hg

bayes_opt/acquisition.py

@@ -786,6 +786,7 @@ class ExpectedImprovement(AcquisitionFunction):
         Decay rate for xi. If None, no decay is applied.
 
     exploration_decay_delay : int, default None
+        Delay for decay. If None, decay is applied from the start.
 
     random_state : int, RandomState, default None
         Set the random state for reproducibility.

bayes_opt/bayesian_optimization.py

@@ -55,6 +55,11 @@ class BayesianOptimization:
         Dictionary with parameters names as keys and a tuple with minimum
         and maximum values.
 
+    acquisition_function: AcquisitionFunction, optional(default=None)
+            The acquisition function to use for suggesting new points to evaluate.
+            If None, defaults to UpperConfidenceBound for unconstrained problems
+            and ExpectedImprovement for constrained problems.
+
     constraint: NonlinearConstraint.
         Note that the names of arguments of the constraint function and of
         f need to be the same.