Helper function to create paragraph grid.
array $items: Array of paragraphs items.
string $layout: Layout name.
\Drupal\Core\Entity\EntityInterface Paragraphs grid entity.
function _paragraphs_collection_demo_create_grid_paragraph(array $items, $layout) {
$grid_paragraph = Paragraph::create([
'type' => 'grid',
'paragraphs_container_paragraphs' => $items,
]);
$grid_paragraph
->setBehaviorSettings('grid_layout', [
'layout' => $layout,
]);
$grid_paragraph
->save();
return $grid_paragraph;
}