Saving certificate to memory?

[vsoch]

Hi! I'm using zeromq from within a Kubernetes operator to generate a configmap to write / provide to pods. I noticed here:

czmq/src/zcert.c

Lines 18 to 19 in 0b3a4c5

	public + secret key pair, plus metadata. It can be used as a
	temporary object in memory, or persisted to disk. On disk, a

there is a note about saving to memory, and I was wondering if there is an example / test that shows how to do that? Ideally we would not need to save these paths to the filesystem of the operator. Thank you!