It's fun to poke around under the hood a little bit, and look at parts of the internal API:

    > Object.keys(bcx.models)
    ["PersonOrGroup", "Bucket", "BucketAccess", "Calendar",
    "CalendarEvent", "Project", "Person", "CalendarDisplay", "Todo"]

    > Object.keys(bcx.models.Todo.prototype)
    ["constructor", "isAllDay", "isTimed", "urlRoot", "getBucketPath", 
    "showPath", "bucket", "doesOccurOn", "doesOccurOnOrAfter", 
    "doesOccurBetween", "getDueDate", "summary"]