Function isAsyncIterable

isAsyncIterable<T, TReturn, TNext>(
it: Iterable<T, TReturn, TNext> | AsyncIterable<T, TReturn, TNext>,
): it is AsyncIterable<T, TReturn, TNext>
Type guard: checks if an iterable is async.
Type Parameters
- T
  Value type.
- TReturn
  Return type.
- TNext
  Type passed to next().
Parameters
- it: Iterable<T, TReturn, TNext> | AsyncIterable<T, TReturn, TNext>
  The iterable to check.
Returns it is AsyncIterable<T, TReturn, TNext>
true if async iterable.
Example
```
isAsyncIterable(function* () { yield 1; }());        // false
isAsyncIterable(async function* () { yield 1; }());  // true
```
- Defined in src/iterator/util.ts:16