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kotlinlang

Hey! Needed some help. Is there a way I can get a value out of a `single` if it is empty? For example, I have my DB call returning a single and want to return a boolean value on basis of whether it is empty or not. I'm doing the following currently, but it doesn't seem to work as the control gets blocked (as the table is empty).
```myDao
    .getAll(object.id())
    .isEmpty
    .blockingGet()
    .not()```

Single itself doesn’t have a concept of an empty value. It should either emit a value or an error.

That snippet should work if `getAll` is a correctly implemented Flowable/Observable