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Title	Object type	File name	Summary
hook_system_breadcrumb_alter	function	core/lib/Drupal/Core/Menu/menu.api.php	Perform alterations to the breadcrumb built by the BreadcrumbManager.
InputStreamFileWriterInterface::DEFAULT_BYTES_TO_READ	constant	core/modules/file/src/Upload/InputStreamFileWriterInterface.php	The length of bytes to read in each iteration when streaming file data.
InstallHelper::readMultilingualContent	function	core/profiles/demo_umami/modules/demo_umami_content/src/InstallHelper.php	Read multilingual content.
install_verify_database_ready	function	core/includes/install.core.inc	Verify that the database is ready (no existing Drupal installation).
JsonApiFunctionalDateFieldTest::testRead	function	core/modules/jsonapi/tests/src/Functional/JsonApiFunctionalDateFieldTest.php	Tests the GET method.
JsonApiFunctionalMultilingualTest::testReadMultilingual	function	core/modules/jsonapi/tests/src/Functional/JsonApiFunctionalMultilingualTest.php	Tests reading multilingual content.
JsonApiFunctionalTest::testRead	function	core/modules/jsonapi/tests/src/Functional/JsonApiFunctionalTest.php	Tests the GET method.
JsonApiFunctionalTest::testReferencingTwiceRead	function	core/modules/jsonapi/tests/src/Functional/JsonApiFunctionalTest.php	Tests the GET method on articles referencing the same tag twice.
LanguageBreadcrumbTest	class	core/modules/language/tests/src/Functional/LanguageBreadcrumbTest.php	Tests breadcrumbs functionality.
LanguageBreadcrumbTest.php	file	core/modules/language/tests/src/Functional/LanguageBreadcrumbTest.php
LanguageBreadcrumbTest::$defaultTheme	property	core/modules/language/tests/src/Functional/LanguageBreadcrumbTest.php
LanguageBreadcrumbTest::$modules	property	core/modules/language/tests/src/Functional/LanguageBreadcrumbTest.php
LanguageBreadcrumbTest::setUp	function	core/modules/language/tests/src/Functional/LanguageBreadcrumbTest.php
LanguageBreadcrumbTest::testBreadCrumbs	function	core/modules/language/tests/src/Functional/LanguageBreadcrumbTest.php	Tests breadcrumbs with URL prefixes.
LayoutBuilderBreadcrumbAlterTest	class	core/modules/layout_builder/tests/src/Kernel/LayoutBuilderBreadcrumbAlterTest.php	Tests layout_builder_system_breadcrumb_alter().
LayoutBuilderBreadcrumbAlterTest.php	file	core/modules/layout_builder/tests/src/Kernel/LayoutBuilderBreadcrumbAlterTest.php
LayoutBuilderBreadcrumbAlterTest::testBreadcrumbAlterNullRouteMatch	function	core/modules/layout_builder/tests/src/Kernel/LayoutBuilderBreadcrumbAlterTest.php	Check that there are no errors when alter called with null route match.
LayoutBuilderHooks::systemBreadcrumbAlter	function	core/modules/layout_builder/src/Hook/LayoutBuilderHooks.php	Implements hook_system_breadcrumb_alter().
LayoutBuilderTest::testBreadcrumb	function	core/modules/layout_builder/tests/src/Functional/LayoutBuilderTest.php	Tests the expected breadcrumbs of the Layout Builder UI.
LayoutBuilderTestMenuHooks::systemBreadcrumbAlter	function	core/modules/layout_builder/tests/modules/layout_builder_test/src/Hook/LayoutBuilderTestMenuHooks.php	Implements hook_system_breadcrumb_alter().
LocaleDefaultConfigStorage::read	function	core/modules/locale/src/LocaleDefaultConfigStorage.php	Read a configuration from install storage or default languages.
LocalReadOnlyStream	class	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php	Defines a read-only Drupal stream wrapper base class for local files.
LocalReadOnlyStream.php	file	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php
LocalReadOnlyStream::getType	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php
LocalReadOnlyStream::mkdir	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php	Support for mkdir().
LocalReadOnlyStream::rename	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php	Support for rename().
LocalReadOnlyStream::rmdir	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php	Support for rmdir().
LocalReadOnlyStream::stream_flush	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php	Support for fflush().
LocalReadOnlyStream::stream_lock	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php	Support for flock().
LocalReadOnlyStream::stream_metadata	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php	Does not change meta data as this is a read-only stream wrapper.
LocalReadOnlyStream::stream_open	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php
LocalReadOnlyStream::stream_truncate	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php
LocalReadOnlyStream::stream_write	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php	Support for fwrite(), file_put_contents() etc.
LocalReadOnlyStream::unlink	function	core/lib/Drupal/Core/StreamWrapper/LocalReadOnlyStream.php	Support for unlink().
LocalStream::dir_readdir	function	core/lib/Drupal/Core/StreamWrapper/LocalStream.php
LocalStream::stream_read	function	core/lib/Drupal/Core/StreamWrapper/LocalStream.php
ManagedStorage::read	function	core/lib/Drupal/Core/Config/ManagedStorage.php
ManagedStorage::readMultiple	function	core/lib/Drupal/Core/Config/ManagedStorage.php
ManagedStorageTest::read	function	core/tests/Drupal/KernelTests/Core/Config/Storage/ManagedStorageTest.php
MARK_READ	constant	core/includes/theme.inc	Mark content as read.
MemoryStorage::read	function	core/lib/Drupal/Core/Config/MemoryStorage.php
MemoryStorage::readMultiple	function	core/lib/Drupal/Core/Config/MemoryStorage.php
MemoryStorageTest::read	function	core/tests/Drupal/KernelTests/Core/Config/Storage/MemoryStorageTest.php
MenuTestController::breadcrumbTitleCallback	function	core/modules/system/tests/modules/menu_test/src/Controller/MenuTestController.php	A title callback for XSS breadcrumb check.
MenuUiHooks::systemBreadcrumbAlter	function	core/modules/menu_ui/src/Hook/MenuUiHooks.php	Implements hook_system_breadcrumb_alter().
modules.README.txt	file	core/assets/scaffold/files/modules.README.txt	Modules extend your site functionality beyond Drupal core. WHAT TO PLACE IN THIS DIRECTORY? -------------------------------- Placing downloaded and custom modules in this directory separates downloaded and custom modules from Drupal core's…
NodeFieldAccessTest::$readOnlyFields	property	core/modules/node/tests/src/Kernel/NodeFieldAccessTest.php	These fields are automatically managed and can not be changed by any user.
NullStorage::read	function	core/lib/Drupal/Core/Config/NullStorage.php
NullStorage::readMultiple	function	core/lib/Drupal/Core/Config/NullStorage.php
PathBasedBreadcrumbBuilder	class	core/modules/system/src/PathBasedBreadcrumbBuilder.php	Defines a class to build path-based breadcrumbs.

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