Inheritance: extends Illuminate\Foundation\Http\FormRequest
 /**
  * Update the specified resource in storage.
  *
  * @param \Mage2\User\Requests\Admin\RoleRequst $request
  * @param int $id
  *
  * @return \Illuminate\Http\Response
  */
 public function update(RoleRequst $request, $id)
 {
     try {
         $role = Role::findorfail($id);
         $role->update($request->all());
         $this->_saveRolePermissions($request, $role);
     } catch (\Exception $e) {
         echo 'Caught exception: ', $e->getMessage(), "\n";
     }
     return redirect()->route('admin.role.index')->with('notificationText', " Role Updates Successfully!");
 }