Man pages matching name pmtraversepmns in section 3:

pmTraversePMNS.3.en	debian 10 / libpcp3-dev
pmtraversepmns.3.en	debian 10 / libpcp3-dev
pmTraversePMNS.3.en	debian 11 / libpcp3-dev
pmTraversePMNS.3.en	debian 12 / libpcp3-dev