OptionaldestinationOptionaldestinationThe type of the destination.
OptionalspecialThis field is used to denote whether the destination is the email of the owner of the securable object. The special destination cannot be assigned to a securable and only represents the default destination of the securable. The securable types that support default special destinations are: "catalog", "external_location", "connection", "credential", and "metastore". The destination_type of a special_destination is always EMAIL.
The identifier for the destination. This is the email address for EMAIL destinations, the URL for URL destinations, or the unique notification destination ID for all other external destinations.