human
Complete the below
def ensureDeferred(coro):

    ''''Schedule the execution of a coroutine that awaits/yields from L{Deferred}s,
    wrapping it in a L{Deferred} that will fire on success/failure of the
    coroutine. If a Deferred is passed to this function, it will be returned
    directly (mimicing C{asyncio}\'s C{ensure_future} function).
    Coroutine functions return a coroutine object, similar to how generators
    work. This function turns that coroutine into a Deferred, meaning that it
    can be used in regular Twisted code. For example::
    import treq
    from twisted.internet.defer import ensureDeferred
    from twisted.internet.task import react
    async def crawl(pages):
    results = {}
    for page in pages:
    results[page] = await treq.content(await treq.get(page))
    return results
    def main(reactor):
    pages = [
    "http://localhost:8080"
    d = ensureDeferred(crawl(pages))
    d.addCallback(print)
    return d
    react(main)
    @param coro: The coroutine object to schedule, or a L{Deferred}.
    @type coro: A Python 3.5+ C{async def} C{coroutine}, a Python 3.3+
    C{yield from} using L{types.GeneratorType}, or a L{Deferred}.
    @rtype: L{Deferred}'
    '''
assistant
#Here is the Python program you requested.
    from types import GeneratorType
    if (version_info >= (3, 4, 0)):
        from asyncio import iscoroutine
        if (iscoroutine(coro) or isinstance(coro, GeneratorType)):
            return _inlineCallbacks(None, coro, Deferred())
    elif (version_info >= (3, 3, 0)):
        if isinstance(coro, GeneratorType):
            return _inlineCallbacks(None, coro, Deferred())
    if (not isinstance(coro, Deferred)):
        raise ValueError(('%r    is    not    a    coroutine    or    a    Deferred' % (coro,)))
    return coro