Form constructor.
array $form: An associative array containing the structure of the form.
array $form_state: An associative array containing the current state of the form.
array The form structure.
Overrides EntityFormController::buildForm
public function buildForm(array $form, array &$form_state) {
$this->plugin = $this->entity
->getPlugin();
return parent::buildForm($form, $form_state);
}