def underscore_to_camel(modinput, modadd):
    """
       Find all functions in modinput and add them to modadd.  
       In modadd, all the functions will be converted from name_with_underscore
       to camelCase
    """
functions = inspect.getmembers(modinput, inspect.isfunction)
for f in functions:
    pass
Renaming of functions with preservation of backward compatibility