abd6fa8b2d9207d8d28fa9836e1e336aecffa67f
It's a readwrite property, thus it must have an case PROP_MANAGER set in get_property.
Calendar is a calendar application for GNOME. Design is an ongoing effort, so is development. The wiki is [here][1] [1]: https://wiki.gnome.org/Design/Apps/Calendar
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