subcomposer is now a module. You can still run it from the command subcomposer is now a module. You can still run it from the command line. If you want it to work as a module, you need to call the considersendupdate() method with the period of the after loop that it should use.

# Abstract UI widgets

class UI(Something):
    pass

class Scale(UI):
    def __init__(self, start, stop, res=0.001):
        pass

""" unfinished
class Button(UI):
    def __init__(self, etc)
"""