Converting a project to task for adding to project


I have a script to drop tasks into my Someday/Maybe project.
The script works great for tasks but I’d also like it to do the same thing for projects. In the application when I drag and drop this is seamless but the following code errors out with

Error: Cannot move objects of class “project” to <OFMTask:0x6000022a8630 - p6N9MzqiGpM ‘⏳Someday & Maybe’>.scriptChildren, which requires “task”. (6)

    				tell anItem
    					set theTags to tags
    					remove theTags from tags
    					move to (end of tasks of theSomedayMaybeProject)
    				end tell