diff --git a/src/Libs/Database.php b/src/Libs/Database.php
index e52bb60..da8f212 100644
--- a/src/Libs/Database.php
+++ b/src/Libs/Database.php
@@ -30,7 +30,8 @@ class Database extends PDO {
      *
      * @return PDO
      */
-    static public function getInstance() : PDO {
+    static public function getInstance(): PDO
+    {
         if (is_null(self::$db)) {
 
             if (DB_TYPE == 'sqlite') {
@@ -43,7 +44,6 @@ class Database extends PDO {
             try {
                 self::$db = new PDO($dsn, DB_USER, DB_PASS);
             } catch (PDOException $e) {
-                echo "<pre>";
                 throw new Exception(
                     'Error at connect to database: ' . $e->getMessage()
                 );
diff --git a/src/Libs/Middleware.php b/src/Libs/Middleware.php
index b98100e..b63df10 100644
--- a/src/Libs/Middleware.php
+++ b/src/Libs/Middleware.php
@@ -20,7 +20,8 @@ class Middleware {
      *
      * @return mixed
      */
-    public static function next(Neuron $req): mixed {
+    public static function next(Neuron $req): mixed
+    {
         $next = array_pop($req->next);
         return call_user_func_array($next, [$req]);
     }
diff --git a/src/Libs/Model.php b/src/Libs/Model.php
index c7d1538..1966cfa 100644
--- a/src/Libs/Model.php
+++ b/src/Libs/Model.php
@@ -49,7 +49,8 @@ class Model {
      *
      * @return PDO
      */
-    protected static function db() : PDO {
+    protected static function db(): PDO
+    {
         if (is_null(static::$db))
             static::$db = Database::getInstance();
 
@@ -62,7 +63,8 @@ class Model {
      *
      * @return bool
      */
-    public function beginTransaction() : bool {
+    public function beginTransaction(): bool
+    {
         return static::db()->beginTransaction();
     }
 
@@ -72,7 +74,8 @@ class Model {
      *
      * @return bool
      */
-    public function rollBack() : bool {
+    public function rollBack(): bool
+    {
         return static::db()->rollBack();
     }
 
@@ -82,7 +85,8 @@ class Model {
      *
      * @return bool
      */
-    public function commit() : bool {
+    public function commit(): bool
+    {
         return static::db()->commit();
     }
 
@@ -103,7 +107,8 @@ class Model {
      * @return array
      *   Contiene el resultado de la llamada SQL .
      */
-    protected static function query(string $query, bool $resetQuery = true) : array {
+    protected static function query(string $query, bool $resetQuery = true): array
+    {
         $db = static::db();
 
         try {
@@ -136,7 +141,8 @@ class Model {
      * Reinicia la configuración de la sentencia SQL.
      * @return void
      */
-    protected static function resetQuery(): void {
+    protected static function resetQuery(): void
+    {
         static::$querySelect = [
             'select'              => ['*'],
             'where'               => '',
@@ -158,7 +164,8 @@ class Model {
      * @return string
      *   Contiene la sentencia SQL.
      */
-    protected static function buildQuery() : string {
+    protected static function buildQuery(): string
+    {
         $sql = 'SELECT '.join(', ', static::$querySelect['select']);
 
         if (static::$querySelect['from'] != '')
@@ -201,7 +208,8 @@ class Model {
      * @return string
      *   Parámetro de sustitución.
      */
-    private static function bindValue(string $value) : string{
+    private static function bindValue(string $value): string
+    {
         $index = ':v_'.count(static::$queryVars);
         static::$queryVars[$index] = $value;
         return $index;
@@ -217,7 +225,8 @@ class Model {
      * @return static
      *   Retorna un objeto de la clase actual.
      */
-    protected static function getInstance(array $elem = []) : static {
+    protected static function getInstance(array $elem = []): static
+    {
         $class = get_called_class();
         $instance = new $class;
 
@@ -237,7 +246,8 @@ class Model {
      * @return array
      *   Contiene los atributos indexados del objeto actual.
      */
-    protected function getVars() : array {
+    protected function getVars(): array
+    {
         $reflection = new ReflectionClass($this);
         $properties = $reflection->getProperties(ReflectionProperty::IS_PUBLIC);
         $result     = [];
@@ -266,7 +276,8 @@ class Model {
      * @return string
      *   Devuelve el nombre de la clase actual.
      */
-    public static function className() : string {
+    public static function className(): string
+    {
         return strtolower(substr(strrchr(get_called_class(), '\\'), 1));
     }
 
@@ -277,7 +288,8 @@ class Model {
      *
      * @return string
      */
-    protected static function table() : string {
+    protected static function table(): string
+    {
         if (isset(static::$table))
             return static::$table;
         return static::className().static::$tableSufix;
@@ -287,7 +299,8 @@ class Model {
      * Actualiza los valores en la BD con los valores del objeto actual.
      * @return void
      */
-    protected function update(): void {
+    protected function update(): void
+    {
         $atts = $this->getVars();
 
         foreach ($atts as $key => $value) {
@@ -316,7 +329,8 @@ class Model {
      * objeto actual.
      * @return void
      */
-    protected function add(): void {
+    protected function add(): void
+    {
         $db = static::db();
         $atts = $this->getVars();
 
@@ -341,7 +355,8 @@ class Model {
      * llama a update para actualizar o add para insertar una nueva fila.
      * @return void
      */
-    public function save(): void {
+    public function save(): void
+    {
         $pk = static::$primaryKey;
         if (isset($this->$pk))
             $this->update();
@@ -370,7 +385,8 @@ class Model {
      *
      * @return static
      */
-    public static function select(array $columns) : static {
+    public static function select(array $columns): static
+    {
         static::$querySelect['select'] = $columns;
 
         return new static();
@@ -384,7 +400,8 @@ class Model {
      *
      * @return static
      */
-    public static function from(array $tables) : static {
+    public static function from(array $tables): static
+    {
         static::$querySelect['from'] = join(', ', $tables);
 
         return new static();
@@ -408,8 +425,19 @@ class Model {
      *
      * @return static
      */
-    public static function where(string $column, string $operatorOrValue, string $value=null, bool $no_filter = false) : static {
-        return static::and($column, $operatorOrValue, $value, $no_filter);
+    public static function where(
+        string $column,
+        string $operatorOrValue,
+        string $value   = null,
+        bool $no_filter = false
+    ): static
+    {
+        return static::and(
+            $column,
+            $operatorOrValue,
+            $value,
+            $no_filter
+        );
     }
 
     /**
@@ -430,7 +458,13 @@ class Model {
      *
      * @return static
      */
-    public static function and(string $column, string $operatorOrValue, string $value=null, bool $no_filter = false) : static {
+    public static function and(
+        string $column,
+        string $operatorOrValue,
+        string $value   = null,
+        bool $no_filter = false
+    ): static
+    {
         if (is_null($value)) {
             $value = $operatorOrValue;
             $operatorOrValue = '=';
@@ -465,7 +499,13 @@ class Model {
      *
      * @return static
      */
-    public static function or(string $column, string $operatorOrValue, string $value=null, bool $no_filter = false) : static {
+    public static function or(
+        string $column,
+        string $operatorOrValue,
+        string $value   = null,
+        bool $no_filter = false
+    ): static
+    {
         if (is_null($value)) {
             $value = $operatorOrValue;
             $operatorOrValue = '=';
@@ -496,7 +536,12 @@ class Model {
      *
      * @return static
      */
-    public static function where_in(string $column, array $arr, bool $in = true) : static {
+    public static function where_in(
+        string $column,
+        array $arr,
+        bool $in = true
+    ): static
+    {
         $arrIn = [];
         foreach($arr as $value) {
             $arrIn[] = static::bindValue($value);
@@ -527,7 +572,13 @@ class Model {
      *
      * @return static
      */
-    public static function leftJoin(string $table, string $columnA, string $operatorOrColumnB, string $columnB = null) : static {
+    public static function leftJoin(
+        string $table,
+        string $columnA,
+        string $operatorOrColumnB,
+        string $columnB = null
+    ): static
+    {
         if (is_null($columnB)) {
             $columnB = $operatorOrColumnB;
             $operatorOrColumnB = '=';
@@ -555,7 +606,13 @@ class Model {
      *
      * @return static
      */
-    public static function rightJoin(string $table, string $columnA, string $operatorOrColumnB, string $columnB = null) : static {
+    public static function rightJoin(
+        string $table,
+        string $columnA,
+        string $operatorOrColumnB,
+        string $columnB = null
+    ): static
+    {
         if (is_null($columnB)) {
             $columnB = $operatorOrColumnB;
             $operatorOrColumnB = '=';
@@ -583,7 +640,13 @@ class Model {
      *
      * @return static
      */
-    public static function innerJoin(string $table, string $columnA, string $operatorOrColumnB, string $columnB = null) : static {
+    public static function innerJoin(
+        string $table,
+        string $columnA,
+        string $operatorOrColumnB,
+        string $columnB = null
+    ): static
+    {
         if (is_null($columnB)) {
             $columnB = $operatorOrColumnB;
             $operatorOrColumnB = '=';
@@ -602,7 +665,8 @@ class Model {
      *
      * @return static
      */
-    public static function groupBy(array $arr) : static {
+    public static function groupBy(array $arr): static
+    {
         static::$querySelect['groupBy'] = join(', ', $arr);
         return new static();
     }
@@ -618,7 +682,8 @@ class Model {
      *
      * @return static
      */
-    public static function limit(int $offsetOrQuantity, ?int $quantity = null) : static {
+    public static function limit(int $offsetOrQuantity, ?int $quantity = null): static
+    {
         if (is_null($quantity))
             static::$querySelect['limit'] = $offsetOrQuantity;
         else
@@ -639,7 +704,8 @@ class Model {
      *
      * @return static
      */
-    public static function orderBy(string $value, string $order = 'ASC') : static {
+    public static function orderBy(string $value, string $order = 'ASC'): static
+    {
         if ($value == "RAND") {
             static::$querySelect['orderBy'] = 'RAND()';
             return new static();
@@ -665,7 +731,8 @@ class Model {
      *
      * @return int
      */
-    public static function count(bool $resetQuery = true, bool $useLimit = false) : int {
+    public static function count(bool $resetQuery = true, bool $useLimit = false): int
+    {
         if (!$resetQuery)
             $backup = [
                 'select'              => static::$querySelect['select'],
@@ -707,7 +774,8 @@ class Model {
      *
      * @return static|null
      */
-    public static function getById(mixed $id): ?static {
+    public static function getById(mixed $id): ?static
+    {
         return static::where(static::$primaryKey, $id)->getFirst();
     }
 
@@ -722,7 +790,8 @@ class Model {
      *
      * @return static
      */
-    public static function search(string $search, array $in = null) : static {
+    public static function search(string $search, array $in = null): static
+    {
         if ($in == null) {
             $className = get_called_class();
             $in = array_keys((new $className())->getVars());
@@ -756,9 +825,10 @@ class Model {
      *   (opcional) Indica si el query debe reiniciarse o no (por defecto es true).
      *
      * @return array
-     *   Contiene un arreglo de instancias de la clase actual.
+     *   Arreglo con instancias del la clase actual resultantes del query.
      */
-    public static function get(bool $resetQuery = true) : array { // Devuelve array vacío si no encuentra nada.
+    public static function get(bool $resetQuery = true): array
+    {
         $sql = static::buildQuery();
         $result = static::query($sql, $resetQuery);
 
@@ -780,7 +850,8 @@ class Model {
      * @return static|null
      *   Puede retornar un objeto static o null.
      */
-    public static function getFirst(bool $resetQuery = true): ?static { // Devuelve null si no encuentra nada.
+    public static function getFirst(bool $resetQuery = true): ?static
+    {
         static::limit(1);
         $instances = static::get($resetQuery);
         return empty($instances) ? null : $instances[0];
@@ -792,7 +863,8 @@ class Model {
      * @return array
      *   Contiene un arreglo de instancias de la clase actual.
      */
-    public static function all() : array {
+    public static function all(): array
+    {
         $sql = 'SELECT * FROM '.static::table();
         $result = static::query($sql);
 
@@ -813,7 +885,8 @@ class Model {
      *
      * @return void
      */
-    public function setNull(string|array $atts): void {
+    public function setNull(string|array $atts): void
+    {
         if (is_array($atts)) {
             foreach ($atts as $att)
                 if (!in_array($att, $this->toNull))
diff --git a/src/Libs/Neuron.php b/src/Libs/Neuron.php
index c86f477..3c78242 100644
--- a/src/Libs/Neuron.php
+++ b/src/Libs/Neuron.php
@@ -27,7 +27,8 @@ class Neuron {
      *
      * @param array $data
      */
-    public function __construct(...$data) {
+    public function __construct(...$data)
+    {
         if (count($data) === 1 &&
             isset($data[0]) &&
             (is_array($data[0]) ||
@@ -42,9 +43,10 @@ class Neuron {
      * __get
      *
      * @param string $index
-     * @return mixed
+     * @return null
      */
-    public function __get(string $index) : mixed {
+    public function __get(string $index): null
+    {
         return null;
     }
 }
diff --git a/src/Libs/Request.php b/src/Libs/Request.php
index 885dc2d..501690f 100644
--- a/src/Libs/Request.php
+++ b/src/Libs/Request.php
@@ -39,7 +39,8 @@ class Request extends Neuron  {
      *
      * @param string $path  Ruta actual tomando como raíz la instalación de DuckBrain.
      */
-    public function __construct(string $path = '/') {
+    public function __construct(string $path = '/')
+    {
         $this->path   = $path;
         $this->get    = new Neuron($_GET);
         $this->post   = new Neuron($_POST);
diff --git a/src/Libs/Router.php b/src/Libs/Router.php
index d5cf244..10f0231 100644
--- a/src/Libs/Router.php
+++ b/src/Libs/Router.php
@@ -28,7 +28,8 @@ class Router {
      *
      * @return void
      */
-    public static function defaultNotFound (): void {
+    public static function defaultNotFound (): void
+    {
         header("HTTP/1.0 404 Not Found");
         echo '<h2 style="text-align: center;margin: 25px 0px;">Error 404 - Página no encontrada</h2>';
     }
@@ -52,7 +53,8 @@ class Router {
      *     path        - Contiene la ruta con las pseudovariables reeplazadas por expresiones regulares.
      *     callback    - Contiene el callback en formato Namespace\Clase::Método.
      */
-    private static function parse(string $path, callable $callback): array {
+    private static function parse(string $path, callable $callback): array
+    {
         preg_match_all('/{(\w+)}/s', $path, $matches, PREG_PATTERN_ORDER);
         $paramNames = $matches[1];
 
@@ -78,7 +80,8 @@ class Router {
      *
      * @return string
      */
-    public static function basePath(): string {
+    public static function basePath(): string
+    {
         if (defined('SITE_URL'))
             return parse_url(SITE_URL, PHP_URL_PATH);
         return str_replace($_SERVER['DOCUMENT_ROOT'], '/', ROOT_DIR);
@@ -95,7 +98,8 @@ class Router {
      *     redirigidos a "https://ejemplo.com/duckbrain/docs".
      * @return void
      */
-    public static function redirect(string $path): void {
+    public static function redirect(string $path): void
+    {
         header('Location: '.static::basePath().substr($path,1));
         exit;
     }
@@ -110,7 +114,8 @@ class Router {
      * @return static
      *   Devuelve la instancia actual.
      */
-    public static function middleware(callable $callback, int $priority = null): static {
+    public static function middleware(callable $callback, int $priority = null): static
+    {
         if (!isset(static::$last))
             return new static();
 
@@ -140,7 +145,8 @@ class Router {
      *
      * @return static
      */
-    public static function reconfigure(callable $callback): static {
+    public static function reconfigure(callable $callback): static
+    {
         if (empty(static::$last))
             return new static();
 
@@ -168,7 +174,8 @@ class Router {
      * @return
      *    Devuelve la instancia actual.
      */
-    public static function configure(string $method, string $path, ?callable $callback = null): static {
+    public static function configure(string $method, string $path, ?callable $callback = null): static
+    {
         if (is_null($callback)) {
             $path = preg_quote($path, '/');
             $path = preg_replace(
@@ -201,7 +208,8 @@ class Router {
      * @return static
      *   Devuelve la instancia actual.
      */
-    public static function get(string $path, callable $callback = null): static {
+    public static function get(string $path, callable $callback = null): static
+    {
         return static::configure('get', $path, $callback);
     }
 
@@ -216,8 +224,9 @@ class Router {
      * @return static
      *   Devuelve la instancia actual.
      */
-    public static function post(string $path, callable $callback = null): static {
-         return static::configure('post', $path, $callback);
+    public static function post(string $path, callable $callback = null): static
+    {
+        return static::configure('post', $path, $callback);
     }
 
     /**
@@ -232,7 +241,8 @@ class Router {
      *   Devuelve la instancia actual
      */
 
-    public static function put(string $path, callable $callback = null): static {
+    public static function put(string $path, callable $callback = null): static
+    {
         return static::configure('put', $path, $callback);
     }
 
@@ -247,7 +257,8 @@ class Router {
      * @return static
      *   Devuelve la instancia actual
      */
-    public static function patch(string $path, callable $callback = null): static {
+    public static function patch(string $path, callable $callback = null): static
+    {
         return static::configure('patch', $path, $callback);
     }
 
@@ -262,7 +273,8 @@ class Router {
      * @return static
      *   Devuelve la instancia actual
      */
-    public static function delete(string $path, callable $callback = null): static {
+    public static function delete(string $path, callable $callback = null): static
+    {
         return static::configure('delete', $path, $callback);
     }
 
@@ -271,7 +283,8 @@ class Router {
      *
      * @return string
      */
-    public static function currentPath() : string {
+    public static function currentPath() : string
+    {
         return preg_replace('/'.preg_quote(static::basePath(), '/').'/',
                             '/', strtok($_SERVER['REQUEST_URI'], '?'), 1);
     }
@@ -296,7 +309,8 @@ class Router {
      * Si no la ruta no coincide con ninguna de las rutas configuradas, ejecutará el callback $notFoundCallback
      * @return void
      */
-    public static function apply(): void {
+    public static function apply(): void
+    {
         $path =  static::currentPath();
         $routers = match($_SERVER['REQUEST_METHOD']) { // Según el método selecciona un arreglo de routers configurados
             'POST'   => static::$post,
diff --git a/src/Libs/View.php b/src/Libs/View.php
index b611a5c..e87f414 100644
--- a/src/Libs/View.php
+++ b/src/Libs/View.php
@@ -22,10 +22,16 @@ class View extends Neuron {
      *
      * @return void
      */
-    private function include(string $viewName, string $viewPath = null, string $extension = 'php'): void {
+    private function include(
+        string $viewName,
+        string $viewPath  = null,
+        string $extension = 'php'
+    ): void
+    {
         $view = $this;
 
-        if (isset($viewPath) && file_exists("$viewPath$viewName.$extension")) {
+        if (isset($viewPath) &&
+            file_exists("$viewPath$viewName.$extension")) {
             include("$viewPath$viewName.$extension");
             return;
         }
@@ -43,7 +49,13 @@ class View extends Neuron {
      *
      * @return void
      */
-    public static function render(string $viewName, array|Neuron $params = [], string $viewPath = null, string $extension = 'php'): void {
+    public static function render(
+        string $viewName,
+        array|Neuron $params = [],
+        string $viewPath     = null,
+        string $extension    = 'php'
+    ): void
+    {
         $instance = new View($params);
         $instance->html($viewName, $viewPath);
     }
@@ -57,8 +69,17 @@ class View extends Neuron {
      *
      * @return void
      */
-    public function html(string $viewName, string $viewPath = null, string $extension = 'php'): void {
-        $this->include($viewName, $viewPath, $extension);
+    public function html(
+        string $viewName,
+        string $viewPath  = null,
+        string $extension = 'php'
+    ): void
+    {
+        $this->include(
+            $viewName,
+            $viewPath,
+            $extension
+        );
     }
 
     /**
@@ -70,7 +91,12 @@ class View extends Neuron {
      *
      * @return void
      */
-    public function css(string $viewName, string $viewPath = null, string $extension = 'css'): void {
+    public function css(
+        string $viewName,
+        string $viewPath  = null,
+        string $extension = 'css'
+    ): void
+    {
         header("Content-type: text/css");
         $this->include($viewName, $viewPath, $extension);
     }
@@ -84,7 +110,12 @@ class View extends Neuron {
      *
      * @return void
      */
-    public function js(string $viewName, string $viewPath = null, string $extension = 'js'): void {
+    public function js(
+        string $viewName,
+        string $viewPath  = null,
+        string $extension = 'js'
+    ): void
+    {
         header("Content-type: application/javascript");
         $this->include($viewName, $viewPath, $extension);
     }
@@ -96,7 +127,8 @@ class View extends Neuron {
      *
      * @return void
      */
-    public function json(object|array $data): void {
+    public function json(object|array $data): void
+    {
         header('Content-Type: application/json; charset=utf-8');
         print(json_encode($data));
     }
@@ -108,7 +140,8 @@ class View extends Neuron {
      *
      * @return void
      */
-    public function text(string $txt): void {
+    public function text(string $txt): void
+    {
         header('Content-Type: text/plain; charset=utf-8');
         print($txt);
     }