public BlockManager::getGroupedDefinitions(array $definitions = NULL)
Gets sorted plugin definitions grouped by category.
In addition to grouping, both categories and its entries are sorted, whereas plugin definitions are sorted by label.
Parameters
array[]|null $definitions: (optional) The plugin definitions to group. If omitted, all plugin definitions are used.
Return value
array[] Keys are category names, and values are arrays of which the keys are plugin IDs and the values are plugin defi