42 files declare their use of MigrateIdMapInterface

DestinationBase.php in core/modules/migrate/src/Plugin/migrate/destination/DestinationBase.php
DownloadFunctionalTest.php in core/modules/migrate/tests/src/Functional/process/DownloadFunctionalTest.php
EntityConfigBase.php in core/modules/migrate/src/Plugin/migrate/destination/EntityConfigBase.php
EntityContentBase.php in core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php
EntityContentBaseTest.php in core/modules/migrate/tests/src/Unit/Plugin/migrate/destination/EntityContentBaseTest.php
EntityContentComplete.php in core/modules/migrate/src/Plugin/migrate/destination/EntityContentComplete.php
EntitySearchPage.php in core/modules/search/src/Plugin/migrate/destination/EntitySearchPage.php
I18nQueryTrait.php in core/modules/content_translation/src/Plugin/migrate/source/I18nQueryTrait.php
MigrateEntityContentBaseTest.php in core/modules/migrate/tests/src/Kernel/MigrateEntityContentBaseTest.php
MigrateException.php in core/modules/migrate/src/MigrateException.php
MigrateExecutable.php in core/modules/migrate/src/MigrateExecutable.php
MigrateExecutableTest.php in core/modules/migrate/tests/src/Unit/MigrateExecutableTest.php
MigrateLookupTest.php in core/modules/migrate/tests/src/Unit/MigrateLookupTest.php
MigrateMapDeleteEvent.php in core/modules/migrate/src/Event/MigrateMapDeleteEvent.php
MigrateMapSaveEvent.php in core/modules/migrate/src/Event/MigrateMapSaveEvent.php
MigrateMessageControllerTest.php in core/modules/migrate_drupal_ui/tests/src/Functional/MigrateMessageControllerTest.php
MigrateMessageTestBase.php in core/modules/migrate/tests/src/Functional/MigrateMessageTestBase.php
MigrateMissingDatabaseTest.php in core/modules/migrate/tests/src/Kernel/MigrateMissingDatabaseTest.php
MigrateMissingDatabaseTest.php in core/modules/migrate_drupal/tests/src/Kernel/MigrateMissingDatabaseTest.php
MigrateNodeTest.php in core/modules/node/tests/src/Kernel/Migrate/d6/MigrateNodeTest.php
MigrateProcessErrorMessagesTest.php in core/modules/migrate/tests/src/Kernel/MigrateProcessErrorMessagesTest.php
MigrateRollbackTest.php in core/modules/migrate/tests/src/Kernel/MigrateRollbackTest.php
MigrateSkipRowTest.php in core/modules/migrate/tests/src/Kernel/MigrateSkipRowTest.php
MigrateSourceTest.php in core/modules/migrate/tests/src/Unit/MigrateSourceTest.php
MigrateSourceTestBase.php in core/modules/migrate/tests/src/Kernel/MigrateSourceTestBase.php
MigrateSqlIdMapEnsureTablesTest.php in core/modules/migrate/tests/src/Unit/MigrateSqlIdMapEnsureTablesTest.php
MigrateSqlIdMapTest.php in core/modules/migrate/tests/src/Unit/MigrateSqlIdMapTest.php
MigrateStub.php in core/modules/migrate/src/MigrateStub.php
MigrateStubTest.php in core/modules/migrate/tests/src/Unit/MigrateStubTest.php
MigrateTestBase.php in core/modules/migrate/tests/src/Kernel/MigrateTestBase.php
MigrateTestCase.php in core/modules/migrate/tests/src/Unit/MigrateTestCase.php
MigrateUpgradeTestBase.php in core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php
MigrateUrlAliasTest.php in core/modules/path/tests/src/Kernel/Migrate/d6/MigrateUrlAliasTest.php
MigrateUserRoleTest.php in core/modules/user/tests/src/Kernel/Migrate/d6/MigrateUserRoleTest.php
MigrationLookupTest.php in core/modules/migrate/tests/src/Unit/process/MigrationLookupTest.php
NullIdMap.php in core/modules/migrate/src/Plugin/migrate/id_map/NullIdMap.php
QueryBatchTest.php in core/modules/migrate/tests/src/Kernel/QueryBatchTest.php
Row.php in core/modules/migrate/src/Row.php
RowTest.php in core/modules/migrate/tests/src/Unit/RowTest.php
SourcePluginBase.php in core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php
Sql.php in core/modules/migrate/src/Plugin/migrate/id_map/Sql.php
SqlBase.php in core/modules/migrate/src/Plugin/migrate/source/SqlBase.php

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