I'm able to load node create forms like so
$node = \Drupal\node\Entity\Node::create(['type' => 'avenue']); $content = \Drupal::service('entity.form_builder')->getForm($node); return $content;
However what if I want to load an edit form for a pre-existing node? I looked on this page https://api.drupal.org/api/drupal/core!modules!node!src!Entity!Node.php/class/Node/8.2.x but I can't find anything that would relate to the edit form. Is there a way to load the edit form for a specific node?