improve module style #4

Job	Run time
lint	15s
ruby-versions / Generate Ruby versions	4s
test (3.0, ubuntu-latest)	24s
test (3.0, macos-latest)	23s
test (3.0, windows-latest)	2m 8s
test (3.1, ubuntu-latest)	27s
test (3.1, macos-latest)	23s
test (3.1, windows-latest)	1m 59s
test (3.2, ubuntu-latest)	28s
test (3.2, macos-latest)	23s
test (3.2, windows-latest)	1m 29s
test (3.3, ubuntu-latest)	35s
test (3.3, macos-latest)	22s
test (3.3, windows-latest)	2m 12s
test (head, ubuntu-latest)	36s
test (head, macos-latest)	23s
test (head, windows-latest)	1m 35s
test (jruby, ubuntu-latest)	1m 51s
test (jruby, macos-latest)	1m 18s
test (jruby-head, ubuntu-latest)	1m 54s
test (jruby-head, macos-latest)	1m 16s
test (truffleruby, ubuntu-latest)	2m 13s
test (truffleruby, macos-latest)	1m 48s
test (truffleruby-head, ubuntu-latest)	3m 10s
test (truffleruby-head, macos-latest)	2m 2s
	29m 38s

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