[fix] Fix typo

HoldOutValFunc -> HoldoutValFunc

Author: nabenabe0928

autoPyTorch/datasets/base_dataset.py

@@ -13,11 +13,11 @@
 
 from autoPyTorch.constants import CLASSIFICATION_OUTPUTS, STRING_TO_OUTPUT_TYPES
 from autoPyTorch.datasets.resampling_strategy import (
-    CrossValTypes,
     CrossValFunc,
+    CrossValTypes,
     DEFAULT_RESAMPLING_PARAMETERS,
-    HoldoutValTypes,
-    HoldOutValFunc
+    HoldoutValFunc,
+    HoldoutValTypes
 )
 from autoPyTorch.utils.common import FitRequirement, hash_array_or_matrix
 
@@ -110,7 +110,7 @@ def __init__(
             type_check(train_tensors, val_tensors)
         self.train_tensors, self.val_tensors, self.test_tensors = train_tensors, val_tensors, test_tensors
         self.cross_validators: Dict[str, CrossValFunc] = {}
-        self.holdout_validators: Dict[str, HoldOutValFunc] = {}
+        self.holdout_validators: Dict[str, HoldoutValFunc] = {}
         self.rng = np.random.RandomState(seed=seed)
         self.shuffle = shuffle
         self.resampling_strategy = resampling_strategy