Is it possible to get the number of points of an alembic node, without unpacking

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In our pipeline, we are tagging asset's by their point density. To do that we have to unpack it, to access the number of points. Is there a way of accessing the number of point's without unpacking?
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intrinsic:abcpointcount

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I've just realized, that the abcpointcount isn't default for all alembics, even when I write out an allembic with the rop alembic output, abcpointcount isn't available.
Edited by schiho - July 5, 2018 15:06:57
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Weird. Is it not in the prim intrinsic list?

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