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<?php namespace Drupal\layout_builder\Plugin\Block; class InlineBlock { use UnknownTrait; } try { new ReflectionClass('Drupal\layout_builder\Plugin\Block\InlineBlock'); } catch (\Throwable $e) { echo 'caught you!'; }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.20, 8.3.0 - 8.3.8
Fatal error: Trait "Drupal\layout_builder\Plugin\Block\UnknownTrait" not found in /in/jFId8 on line 5
Process exited with code 255.

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