Get conventions for the store profile, optionally filtered by date range or ongoing status
API key in format: sk_*
End date for convention range (format: YYYY-MM-DD HH:MM)
If true, returns only currently ongoing conventions
Start date for convention range (format: YYYY-MM-DD HH:MM)
300350SCHEDULED - ScheduledCANCELED - CanceledUNLISTED - UnlistedDETAILS_PENDING - Details PendingUSE_EXTERNAL_SCHEDULE - Use External ScheduleARCHIVED - ArchivedSCHEDULED, CANCELED, UNLISTED, DETAILS_PENDING, USE_EXTERNAL_SCHEDULE, ARCHIVED 200500500