7 string references to plugin.manager.migrate.source in Drupal 10

FieldMigration::create in core/modules/migrate_drupal/src/Plugin/migrate/FieldMigration.php

MigrateDrupalServiceProvider::alter in core/modules/migrate_drupal/src/MigrateDrupalServiceProvider.php

MigrateSourceTestBase::getPlugin in core/modules/migrate/tests/src/Kernel/MigrateSourceTestBase.php

Instantiates the source plugin under test.

Migration::create in core/modules/migrate/src/Plugin/Migration.php

Creates an instance of the plugin.

MigrationProvidersExistTest::testProvidersExist in core/modules/migrate/tests/src/Kernel/Plugin/MigrationProvidersExistTest.php

Tests that modules exist for all source plugins.

NoSourcePluginDecorator::getDefinitions in core/modules/migrate/src/Plugin/NoSourcePluginDecorator.php

Gets the definition of all plugins for this type.

QueryBatchTest::getPlugin in core/modules/migrate/tests/src/Kernel/QueryBatchTest.php

Instantiates the source plugin under test.