A nested array of Paragraphs Type objects.
A nested array. The first level is keyed by grid layout machine names. The second level is keyed Paragraphs Type IDs. The second-level values are Paragraphs Type objects that allow the respective grid layout. Grid layouts are ordered by name.
Example:
[
'1_2_1_column_layout' => [
'grid_pt' => $grid_paragraphs_type_object,
],
];
Type: array
protected $paragraphsTypesGroupedByGridLayouts;