Undeprecated where_in method.

The initial report that requested deprecation was an error. After a
manual report, I discovered that the actual method is functioning
properly.

src/Libs/Model.php

@@ -482,6 +482,34 @@ class Model {
         return new static();
     }
 
+    /**
+     * Define WHERE usando IN en la sentencia SQL.
+     *
+     * @param string $column
+     *   La columna a comparar.
+     *
+     * @param array $arr
+     *   Arreglo con todos los valores a comparar con la columna.
+     *
+     * @param bool $in
+     *   Define si se tienen que comprobar negativa o positivamente.
+     *
+     * @return static
+     */
+    public static function where_in(string $column, array $arr, bool $in = true) : static {
+        $arrIn = [];
+        foreach($arr as $value) {
+            $arrIn[] = static::bindValue($value);
+        }
+
+        if ($in)
+            static::$querySelect['where'] = "$column IN (".join(', ', $arrIn).")";
+        else
+            static::$querySelect['where'] = "$column NOT IN (".join(', ', $arrIn).")";
+
+        return new static();
+    }
+
     /**
      * Define LEFT JOIN en la sentencia SQL.
      *