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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def send(r, pool=None, stream=False):
 """Sends the request object using the specified pool. If a pool isn't specified this method blocks. Pools are useful because you can specify size and can hence limit concurrency."""

    if pool is not None:
        return pool.spawn(r.send, stream=stream)

    return gevent.spawn(r.send, stream=stream)