The following is a technical report that updating Davinci's development status from December 15th to December 31st. Please note.
Davinci development update history
> Add Logger interface code
> Add Ctx code mapping
> Add doc.go
[Github update history]
> GetHandler gets the handler associated with the logger.
>SetHandler updates the logger to write a record to the specified handler.
>ctx handles a series of key/value pairs that you don't want to check for errors in your logging function.