9 files declare their use of BlockContentInterface
- BlockContent.php in core/
modules/ block_content/ src/ Entity/ BlockContent.php  - BlockContentController.php in core/
modules/ block_content/ src/ Controller/ BlockContentController.php  - BlockContentCreationTest.php in core/
modules/ block_content/ tests/ src/ Functional/ BlockContentCreationTest.php  - BlockContentEntityChangedConstraintValidator.php in core/
modules/ block_content/ src/ Plugin/ Validation/ Constraint/ BlockContentEntityChangedConstraintValidator.php  - BlockContentGetDependencyEvent.php in core/
modules/ block_content/ src/ Event/ BlockContentGetDependencyEvent.php  - block_content.module in core/
modules/ block_content/ block_content.module  - Allows the creation of content blocks through the user interface.
 - ContentImportTest.php in core/
tests/ Drupal/ FunctionalTests/ DefaultContent/ ContentImportTest.php  - MigrateCustomBlockTest.php in core/
modules/ block_content/ tests/ src/ Kernel/ Migrate/ d7/ MigrateCustomBlockTest.php  - SetInlineBlockDependency.php in core/
modules/ layout_builder/ src/ EventSubscriber/ SetInlineBlockDependency.php  
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