code: public function registerCoreContainerAliases()
      {
          // Prepare Facades
          Facade::clearResolvedInstances();
          Facade::setApplication($this);
  
          foreach ($this->registerCoreAliases as $key => $alias) {
              $this->alias($key, $alias);
              if (! class_exists($key)) {
                  class_alias($alias, $key);
              }
          }
      }
docs: Register the core class aliases in the container.
  
  @return void