Adds a file to a manual collection.
If the collection is type 2 (saved search), the media does not exist, the collection does not exist or the media is already in the collection the request will fail.
If the Automatically active field is active for the collection the media will be directly set as active. If Automatically active is not set the media item will be placed in the read more »
This method returns a list of collections from the specified vhost returned in a array. Each array will contain the collection information.
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