Removing specialists from cities

[TheLopez]

Does anyone know how to programatically remove free specialists from a city given by a building?

Also, does anyone know how to programatically remove a specialist from a city that has been automatically assigned by the computer (pressing the city plot when viewing the city screen)?

Here are the list of methods found in CyCity I have already tried but don't work:
alterSpecialistCount
changeForceSpecialistCount
changeFreeSpecialistCount
setForceSpecialistCount
setFreeSpecialistCount