15 files declare their use of OpignoActivityInterface in Opigno module 3.x

ActivityAnswerPluginBase.php in src/ActivityAnswerPluginBase.php

ActivityAnswerPluginInterface.php in src/ActivityAnswerPluginInterface.php

ActivityRevisionsController.php in src/Controller/ActivityRevisionsController.php

FileUploadActivityAnswer.php in ActivityTypes/opigno_file_upload/src/Plugin/ActivityAnswer/FileUploadActivityAnswer.php

H5pActivityAnswer.php in ActivityTypes/opigno_h5p/src/Plugin/ActivityAnswer/H5pActivityAnswer.php

H5PReportXAPIData.php in ActivityTypes/opigno_h5p/src/H5PReportXAPIData.php

LongAnswerActivityAnswer.php in ActivityTypes/opigno_long_answer/src/Plugin/ActivityAnswer/LongAnswerActivityAnswer.php

OpignoActivityRevisionRevertForm.php in src/Form/OpignoActivityRevisionRevertForm.php

OpignoModuleController.php in src/Controller/OpignoModuleController.php

ScormActivityAnswer.php in ActivityTypes/opigno_scorm_activity/src/Plugin/ActivityAnswer/ScormActivityAnswer.php

SlideActivityAnswer.php in src/Plugin/ActivityAnswer/SlideActivityAnswer.php

TincanActivityAnswer.php in ActivityTypes/opigno_tincan_activity/src/Plugin/ActivityAnswer/TincanActivityAnswer.php

TincanContentAnswerAssistant.php in ActivityTypes/opigno_tincan_activity/src/TincanContentAnswerAssistant.php

TrueFalseActivityAnswer.php in src/Plugin/ActivityAnswer/TrueFalseActivityAnswer.php

VideoActivityAnswer.php in ActivityTypes/opigno_video/src/Plugin/ActivityAnswer/VideoActivityAnswer.php