small fix

Author: mathias-von-ottenbreit

API_REFERENCE.md

@@ -189,4 +189,4 @@ The index of the term selected. So ***0*** is the first term, ***1*** is the sec
 
 ## Method: get_validation_indexes()
 
-***Returns a numpy vector containing the indexes of the training data observations used for validation and not training.***
+***Returns a list of integers containing the indexes of the training data observations used for validation and not training.***

aplr/aplr.py

@@ -94,7 +94,7 @@ def get_m(self)->int:
     def get_validation_group_mse(self)->float:
         return self.APLRRegressor.get_validation_group_mse()
 
-    def get_validation_indexes(self)->npt.ArrayLike:
+    def get_validation_indexes(self)->List[int]:
         return self.APLRRegressor.get_validation_indexes()
 
     #For sklearn

setup.py

@@ -15,7 +15,7 @@
 
 setuptools.setup(
     name='aplr',
-    version='1.12.0',
+    version='1.12.1',
     description='Automatic Piecewise Linear Regression',
     ext_modules=[sfc_module],
     author="Mathias von Ottenbreit",