Fix unnecessary logger in serialization (#351)

Author: ElGigi

src/Classifiers/AdaBoost.php

@@ -494,7 +494,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses']);
+        unset($properties['losses'], $properties['logger']);
 
         return $properties;
     }

src/Classifiers/LogisticRegression.php

@@ -475,7 +475,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses']);
+        unset($properties['losses'], $properties['logger']);
 
         return $properties;
     }

src/Classifiers/LogitBoost.php

@@ -657,7 +657,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses'], $properties['scores']);
+        unset($properties['losses'], $properties['scores'], $properties['logger']);
 
         return $properties;
     }

src/Classifiers/MultilayerPerceptron.php

@@ -574,7 +574,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses'], $properties['scores']);
+        unset($properties['losses'], $properties['scores'], $properties['logger']);
 
         return $properties;
     }

src/Classifiers/SoftmaxClassifier.php

@@ -439,7 +439,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses']);
+        unset($properties['losses'], $properties['logger']);
 
         return $properties;
     }

src/Clusterers/FuzzyCMeans.php

@@ -449,7 +449,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses']);
+        unset($properties['losses'], $properties['logger']);
 
         return $properties;
     }

src/Clusterers/GaussianMixture.php

@@ -591,7 +591,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses']);
+        unset($properties['losses'], $properties['logger']);
 
         return $properties;
     }

src/Clusterers/KMeans.php

@@ -551,7 +551,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses']);
+        unset($properties['losses'], $properties['logger']);
 
         return $properties;
     }

src/Clusterers/MeanShift.php

@@ -515,7 +515,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses']);
+        unset($properties['losses'], $properties['logger']);
 
         return $properties;
     }

src/Regressors/Adaline.php

@@ -439,7 +439,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses']);
+        unset($properties['losses'], $properties['logger']);
 
         return $properties;
     }

src/Regressors/GradientBoost.php

@@ -587,7 +587,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses'], $properties['scores']);
+        unset($properties['losses'], $properties['scores'], $properties['logger']);
 
         return $properties;
     }

src/Regressors/MLPRegressor.php

@@ -540,7 +540,7 @@ public function __serialize() : array
     {
         $properties = get_object_vars($this);
 
-        unset($properties['losses'], $properties['scores']);
+        unset($properties['losses'], $properties['scores'], $properties['logger']);
 
         return $properties;
     }