Add missing count method

src/Repositories/AbstractRepository.php

@@ -349,6 +349,20 @@ public function all($columns = ['*'])
         return $this->query->get($columns);
     }
 
+    /**
+     * Retrieve the "count" result of the query.
+     *
+     * @param array $columns
+     *
+     * @return int
+     */
+    public function count($columns = ['*'])
+    {
+        $this->newQuery();
+
+        return $this->query->count($columns);
+    }
+
     /**
      * Get an array with the values of a given column.
      *