Class: cogen.core.events.Join
A operator for waiting on a coroutine.
Example:
@coroutine
def coro_a():
return_value = yield events.Join(ref)
@coroutine
def coro_b():
yield "bla"
raise StopIteration("some return value")
ref = scheduler.add(coro_b)
scheduler.add(coro_a)