Add dunder contains and dunder iter to TracingParameterNodeAtInstant … #1095

Job	Run time
build	1m 38s
lint-files	40s
build-conda	0s
test-country-template	25s
test-core	37s
test-extension-template	27s
check-version	16s
check-for-functional-changes	14s
deploy	34s
publish-to-conda	9m 19s
test-on-windows	4m 33s
	18m 43s

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