4 methods override EntityForm::getBaseFormId()

BookOutlineForm::getBaseFormId in core/modules/book/src/Form/BookOutlineForm.php
Returns a string identifying the base form.
ContentEntityConfirmFormBase::getBaseFormId in core/lib/Drupal/Core/Entity/ContentEntityConfirmFormBase.php
EntityConfirmFormBase::getBaseFormId in core/lib/Drupal/Core/Entity/EntityConfirmFormBase.php
SearchPageFormBase::getBaseFormId in core/modules/search/src/Form/SearchPageFormBase.php

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