6 classes are annotated with YamlFormHandler in YAML Form 8

BrokenYamlFormHandler in src/Plugin/YamlFormHandler/BrokenYamlFormHandler.php

Defines a fallback plugin for missing form handler plugins.

DebugYamlFormHandler in modules/yamlform_devel/src/Plugin/YamlFormHandler/DebugYamlFormHandler.php

Form submission debug handler.

DebugYamlFormHandler in tests/modules/yamlform_test/src/Plugin/YamlFormHandler/DebugYamlFormHandler.php

Form submission debug handler.

EmailYamlFormHandler in src/Plugin/YamlFormHandler/EmailYamlFormHandler.php

Emails a form submission.

RemotePostYamlFormHandler in src/Plugin/YamlFormHandler/RemotePostYamlFormHandler.php

Form submission remote post handler.

TestYamlFormHandler in tests/modules/yamlform_test/src/Plugin/YamlFormHandler/TestYamlFormHandler.php

Form submission test handler.