In systems with very large numbers of queues, it will take an
effectively unbounded amount of time to produce the initial
summary of results if we were to wait for the bounce to be
applied to every queue.
Let's adjust the output of the kcli to indicate that it is async,
and update the docs which already suggested that the numbers would
be partial to indicate that you can only really consume the id
from the response.
A significant portion are bounced as they move through the queues,
not just those swept up in the direct application of the API call.
Pass in a shared hash map to track the counts and report on that
at the end of the call instead.