6 files declare their use of PluginHelperTrait in Layout Builder Restrictions 8.2

AllowedBlocksForm.php in modules/layout_builder_restrictions_by_region/src/Form/AllowedBlocksForm.php

EntityViewModeRestriction.php in src/Plugin/LayoutBuilderRestriction/EntityViewModeRestriction.php

EntityViewModeRestrictionByRegion.php in modules/layout_builder_restrictions_by_region/src/Plugin/LayoutBuilderRestriction/EntityViewModeRestrictionByRegion.php

FormAlter.php in src/Form/FormAlter.php

FormAlter.php in modules/layout_builder_restrictions_by_region/src/Form/FormAlter.php

LayoutBuilderRestrictionBase.php in src/Plugin/LayoutBuilderRestrictionBase.php