6 files declare their use of DesignTokenValuePluginManagerInterface

DesignToken.php in core/lib/Drupal/Core/Theme/Entity/DesignToken.php
DesignTokenConfigEntityKernelTest.php in core/tests/Drupal/KernelTests/Core/Theme/DesignToken/DesignTokenConfigEntityKernelTest.php
DesignTokenPluginManagerTest.php in core/tests/Drupal/Tests/Core/Theme/DesignToken/DesignTokenPluginManagerTest.php
DesignTokenValuePluginManagerKernelTest.php in core/tests/Drupal/KernelTests/Core/Theme/DesignToken/DesignTokenValuePluginManagerKernelTest.php
Typography.php in core/lib/Drupal/Core/Theme/Plugin/DesignTokenValue/Typography.php
TypographyTest.php in core/tests/Drupal/Tests/Core/Theme/DesignToken/Plugin/TypographyTest.php

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