public MessageViewBuilder::buildComponents(array &$build, array $entities, array $displays, $view_mode)
Builds the component fields and properties of a set of entities.
Parameters
&$build: The renderable array representing the entity content.
\Drupal\Core\Entity\EntityInterface[] $entities: The entities whose content is being built.
\Drupal\Core\Entity\Display\EntityViewDisplayInterface[] $displays: The array of entity view displays holding the display options configured for the entity