Added reactiveKey. Updated README

src/Models/ColumnChartModel.php

@@ -3,6 +3,8 @@
 
 namespace Asantibanez\LivewireCharts\Models;
 
+use Ramsey\Uuid\Uuid;
+
 /**
  * Class ColumnChartModel
  * @package Asantibanez\LivewireCharts\Models
@@ -96,4 +98,9 @@ class ColumnChartModel
         $this->data = collect(data_get($array, 'data', []));
     }
 
+    public function reactiveKey()
+    {
+        return md5(json_encode($this->toArray()));
+    }
+
 }

src/Models/LineChartModel.php

@@ -107,4 +107,8 @@ class LineChartModel
         $this->markers = collect(data_get($array, 'markers', []));
     }
 
+    public function reactiveKey()
+    {
+        return md5(json_encode($this->toArray()));
+    }
 }

src/Models/PieChartModel.php

@@ -96,4 +96,8 @@ class PieChartModel
         $this->data = collect(data_get($array, 'data', []));
     }
 
+    public function reactiveKey()
+    {
+        return md5(json_encode($this->toArray()));
+    }
 }