include_deleted, include_cancelled, from, and toinclude_deleted / include_cancelled / from / to 以外のクエリパラメータはすべてcurl --location '/trainings/applicants/count?from=undefined&to=undefined&include_deleted=undefined&include_cancelled=undefined&training_id=undefined&status=undefined&member_id=undefined' \
--header 'api-key: <api-key>'{
"status": 200,
"count": 0
}