use coordination number to test show methods #1250

Job	Run time
Documentation	4m 7s
Julia 1.9 - ubuntu-latest - - push	6m 27s
Julia 1.9 - macOS-latest - - push	7m 47s
Julia 1.9 - windows-latest - - push	12m 28s
Julia lts - ubuntu-latest - - push	6m 52s
Julia lts - macOS-latest - - push	6m 45s
Julia lts - windows-latest - - push	10m 16s
Julia pre - ubuntu-latest - - push	10m 7s
Julia pre - macOS-latest - - push	9m 9s
Julia pre - windows-latest - - push	13m 59s
	1h 27m 57s

Provide feedback