convert string to vCAC:vCACHost type

Hi All,

I have a customer who wants to trigger a vCO flow from an external source using the vCO REST API. One of the arguments sent to the vCO workflow which will be triggered, is the vCAC Host name.

My question is - since the arguments comes in as String from the REST call, how do I convert it in to a vCAC:vCACHost object so as to be used in a script within my flow.

Thanks.