True, if an asynchronous iterator from Symbol.asyncIterator was called
Current pending promise that resolves when a new value is added
Returns a boolean stating whether the stream is open or not
Returns an async iterator allowing to go through the stream
Returns an iterator allowing to go through all items that were already added
Adds a new value to the stream if it is opened, otherwise does nothing
item to add
Closes the stream
Destroys the stream
Buffer of added values