'Load a utility code as a string. Returns (proto, implementation)'

@classmethod
def load_as_string(cls, util_code_name, from_file=None, **kwargs):

    util = cls.load(util_code_name, from_file, **kwargs)
    (proto, impl) = (util.proto, util.impl)
    return (util.format_code(proto), util.format_code(impl))
