- event_type
Type of the event, a character string.
- start_date
Start date of the event, in Date format.
- end_date
End date of the event, in Date format.
- extra_details
Additional details about the event, a character string.
- colors
Color associated with the event, a character string.
- key
A numeric identifier for the event.
- y_start
Starting y-coordinate for graphical representation, a numeric value.
- y_end
Ending y-coordinate for graphical representation, a numeric value.