Importing a vRO Package via the API - tagImportMode

I like the new Swagger UI for the vRO API, it makes it really easy to use:

While using it to figure out some stuff around importing a package, I hit an issue with the tagImportMode parameter:

Depending on which option selected, the following additions to the URL were listed in the documentation as follows:

https://vroserver.fqdn:8281/vco/api/packages?overwrite=false&importConfigurationAttributeValues=true**&tagImportMode=Do%20not%20import%20tags.**

https://vroserver.fqdn:8281/vco/api/packages?overwrite=false&importConfigurationAttributeValues=true**&tagImportMode=Import%20tags%20and%20overwrite%20existing%20values.**

https://vroserver.fqdn:8281/vco/api/packages?overwrite=false&importConfigurationAttributeValues=true**&tagImportMode=Import%20tags%20but%20preserve%20existing%20values.**

However, none of these choices seemed to work, just resulted in 400 (Bad request). Some trial and error followed with different possible combinations, but eventually I found two of them documented in the Developing a Web Services Client for VMware vCenter Orchestrator guide for vCO 5.5.1 and so was able to guess the third.

&tagImportMode=DoNotImport

&tagImportMode=ImportAndOverwriteExistingValue

&tagImportMode=ImportButPreserveExistingValue