update class documentation

5 jobs for issue/cleanup in 12 minutes and 23 seconds (queued for 2 minutes and 27 seconds)
Status Name Job ID Coverage
  Test
passed debian:10 clang-7-libcpp-17 #20686

00:04:10

passed debian:10 gcc-7-17 #20687

00:05:03

passed debian:10 gcc-8-noassert-17 #20685

00:05:15

passed debian:11 gcc-9-20 #20684

00:05:54

passed ubuntu:18.04 clang-6-17 #20688

00:04:08