Is there a function for setSendEachAt

I am trying to send the same email at 2 different times 7:30 and 12:30 and wondered if the 2 times can be sent in the one api call. I seem to be unable to find the function for 'send_each_at'. 

```
$email->setSendEachAt();
```

Only

```
$email->setSendAt();
```

Does it exist or am I calling the wrong function name? Or do I need to send it as a addCustomArg