2.1.1 MessageConfig object

Contains details about the notification particulars of an objective.

Field	Type	Description
`startup` required	Boolean	Whether to notify on startup events.
`reminders` required	Boolean	Whether to send reminders.
`reminderInterval` required if reminders enabled	Duration	The duration between reminders.
`channelTypes` optional	List of string constants	The notifications channels to be used. Valid channel types are: `EMAIL` and `MOBILE`.
`lapseWarnings` optional	Boolean	Whether a message is sent to the user a few days before he threatens to no longer meet the objective.