awaitNext can be used within an async or stream coroutine. When reached, awaitNext will register to receive the next element from an async or a coroutine object.

awaitNext(strm, or, err)



A channel or stream object.


This argument will be evaluated and returned in the case the channel closes. If not specified, awaiting on a closed stream will raise an error with message "StopIteration".


A function to be called if the channel throws an error condition.


In the context of an async or stream, awaitNext(x)

returns the resolved value of a promise x, or stops with an error.