def niDigital_close(self, vi):
    with self._func_lock:
        if (self.niDigital_close_cfunc is None):
            self.niDigital_close_cfunc = self._get_library_function('niDigital_close')
            self.niDigital_close_cfunc.argtypes = [ViSession]
            self.niDigital_close_cfunc.restype = ViStatus
    return self.niDigital_close_cfunc(vi)
def niDigital_close(self, vi):
    with self._func_lock:
        if (self.niDigital_close_cfunc is None):
            self.niDigital_close_cfunc = self._get_library_function('niDigital_close')
            self.niDigital_close_cfunc.argtypes = [ViSession]
            self.niDigital_close_cfunc.restype = ViStatus
    return self.niDigital_close_cfunc(vi)