25 files declare their use of YamlFormElementBase in YAML Form 8

BooleanBase.php in src/Plugin/YamlFormElement/BooleanBase.php

Captcha.php in src/Plugin/YamlFormElement/Captcha.php

Color.php in src/Plugin/YamlFormElement/Color.php

ContainerBase.php in src/Plugin/YamlFormElement/ContainerBase.php

DateBase.php in src/Plugin/YamlFormElement/DateBase.php

Email.php in src/Plugin/YamlFormElement/Email.php

EntityAutocomplete.php in src/Plugin/YamlFormElement/EntityAutocomplete.php

LanguageSelect.php in src/Plugin/YamlFormElement/LanguageSelect.php

MachineName.php in src/Plugin/YamlFormElement/MachineName.php

NumericBase.php in src/Plugin/YamlFormElement/NumericBase.php

OptionsBase.php in src/Plugin/YamlFormElement/OptionsBase.php

Password.php in src/Plugin/YamlFormElement/Password.php

Table.php in src/Plugin/YamlFormElement/Table.php

TextBase.php in src/Plugin/YamlFormElement/TextBase.php

TextFormat.php in src/Plugin/YamlFormElement/TextFormat.php

YamlFormCodeMirror.php in src/Plugin/YamlFormElement/YamlFormCodeMirror.php

YamlFormCompositeBase.php in src/Plugin/YamlFormElement/YamlFormCompositeBase.php

YamlFormCreditCardNumber.php in src/Plugin/YamlFormElement/YamlFormCreditCardNumber.php

YamlFormElement.php in src/Plugin/YamlFormElement/YamlFormElement.php

YamlFormLikert.php in src/Plugin/YamlFormElement/YamlFormLikert.php

YamlFormManagedFileBase.php in src/Plugin/YamlFormElement/YamlFormManagedFileBase.php

YamlFormMarkupBase.php in src/Plugin/YamlFormElement/YamlFormMarkupBase.php

YamlFormSignature.php in src/Plugin/YamlFormElement/YamlFormSignature.php

YamlFormTest.php in tests/modules/yamlform_test/src/Plugin/YamlFormElement/YamlFormTest.php

YamlFormTime.php in src/Plugin/YamlFormElement/YamlFormTime.php