validateAssociations example

$notices[$definition->getClass()] = array_merge_recursive(
                $violations[$definition->getClass()],
                $this->validateDataFieldNotPrefixedByEntityName($definition)
            );

            $notices[$definition->getClass()] = array_merge_recursive(
                $violations[$definition->getClass()],
                $this->checkParentDefinition($definition)
            );

            $violations = array_merge_recursive($violations, $this->validateAssociations($definition));

            if (is_subclass_of($definition, EntityTranslationDefinition::class)) {
                $violations = array_merge_recursive($violations, $this->validateEntityTranslationGettersAreNullable($definition));
                $violations = array_merge_recursive($violations, $this->validateEntityTranslationDefinitions($definition));
            }

            if (($parentDefinition = $definition->getParentDefinition()) !== null) {
                $violations = array_merge_recursive($violations, $this->validateParentDefinitionAssociation($definition, $parentDefinition));
            }
        }