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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def add(cls, module_name, fsts, composer):
        '''
        add a couple of fsts to be superimposed on the module given
        by module_name as soon as it is imported.

        internal - use featuremonkey.compose_later
        '''
        cls._to_compose.setdefault(module_name, [])
        cls._to_compose[module_name].append(
            (list(fsts), composer)
        )
        cls._install()