Setting GH_Document.Author properties for cluster

I'm using ghpython to batch-edit properties for a large number of clusters in a Grasshopper definition. Basically, I want to standardize some metadata before exporting these clusters as UserObjects.

• Name, NickName and Description are settable directly via GH_Cluster--OK, this appears to be straightforward
• Author properties (Name, Website, etc.) are gettable via GH_Cluster.Document("").Author, but the interface is read-only--a bit more complicated... does the SDK expose an alternate method/ interface for setting these values?

thanks

Jamie