I don't think CHECKBOX can have ValueTextList and so no SETITEMS method.
If you don't plan to select multiple items and have a short list of ValueTextList, try RADIOBUTTONGROUP instead. Multiple radiobuttons of the group can be dynamically created this way.
Alternatively, you can use dimension filter which provides checkbox like feature to select multiple values for filtering a dimension.
Sorry, I don't have an answer for CHECKBOX. Maybe future versions can have them.