9 files declare their use of ArgumentPluginBase

ArgumentDefaultPluginBase.php in core/modules/views/src/Plugin/views/argument_default/ArgumentDefaultPluginBase.php
ArgumentValidateTest.php in core/modules/user/tests/src/Kernel/Views/ArgumentValidateTest.php
ArgumentValidatorPluginBase.php in core/modules/views/src/Plugin/views/argument_validator/ArgumentValidatorPluginBase.php
Entity.php in core/modules/views/src/Plugin/views/argument_validator/Entity.php
IndexTidDepth.php in core/modules/taxonomy/src/Plugin/views/argument/IndexTidDepth.php
IndexTidDepthModifier.php in core/modules/taxonomy/src/Plugin/views/argument/IndexTidDepthModifier.php
Search.php in core/modules/search/src/Plugin/views/argument/Search.php
User.php in core/modules/user/src/Plugin/views/argument_validator/User.php
UserUid.php in core/modules/comment/src/Plugin/views/argument/UserUid.php

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