20 files declare their use of Feed

aggregator.module in core/modules/aggregator/aggregator.module
Used to aggregate syndicated content (RSS, RDF, and Atom).
AggregatorFeedViewsFieldAccessTest.php in core/modules/aggregator/tests/src/Kernel/Views/AggregatorFeedViewsFieldAccessTest.php
AggregatorItemViewsFieldAccessTest.php in core/modules/aggregator/tests/src/Kernel/Views/AggregatorItemViewsFieldAccessTest.php
AggregatorTestBase.php in core/modules/aggregator/tests/src/Functional/AggregatorTestBase.php
AggregatorTestBase.php in core/modules/aggregator/src/Tests/AggregatorTestBase.php
AggregatorTitleTest.php in core/modules/aggregator/tests/src/Kernel/AggregatorTitleTest.php
FeedCacheTagsTest.php in core/modules/aggregator/tests/src/Functional/FeedCacheTagsTest.php
FeedParserTest.php in core/modules/aggregator/tests/src/Functional/FeedParserTest.php
FeedProcessorPluginTest.php in core/modules/aggregator/tests/src/Functional/FeedProcessorPluginTest.php
FeedResourceTestBase.php in core/modules/aggregator/tests/src/Functional/Rest/FeedResourceTestBase.php
FeedTest.php in core/modules/jsonapi/tests/src/Functional/FeedTest.php
FeedValidationTest.php in core/modules/aggregator/tests/src/Kernel/FeedValidationTest.php
ImportOpmlTest.php in core/modules/aggregator/tests/src/Functional/ImportOpmlTest.php
ItemCacheTagsTest.php in core/modules/aggregator/tests/src/Functional/ItemCacheTagsTest.php
ItemHalJsonTestBase.php in core/modules/aggregator/tests/src/Functional/Hal/ItemHalJsonTestBase.php
ItemResourceTestBase.php in core/modules/aggregator/tests/src/Functional/Rest/ItemResourceTestBase.php
ItemTest.php in core/modules/jsonapi/tests/src/Functional/ItemTest.php
MigrateAggregatorFeedTest.php in core/modules/aggregator/tests/src/Kernel/Migrate/d6/MigrateAggregatorFeedTest.php
MigrateAggregatorFeedTest.php in core/modules/aggregator/tests/src/Kernel/Migrate/d7/MigrateAggregatorFeedTest.php
UpdateFeedItemTest.php in core/modules/aggregator/tests/src/Functional/UpdateFeedItemTest.php

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