`ConstantKernel` #524

Job	Run time
run_linter	35s
run_unit_tests (master, with-extras)	3m 35s
run_examples	5m 22s
run_unit_tests (master, no-extras)	1m 46s
run_unit_tests (stable, with-extras)	12m 14s
run_unit_tests (stable, no-extras)	1m 36s
	25m 8s

Provide feedback