I was pretty sure that you will ask me this question
but anyways the answer is :
wm.art.admin.connection:getResourceConfiguration you cannot list or view this service in package navigator due to ListACL
A trick will do:
Create a empty flow service and select invoke/insert from your developer/designer and you will get a window popped out just paste the service name wm.art.admin.connection:getResourceConfiguration and click OK, you will see this service in your editor. Pass the required input I mean the connectionAliasName
I hope it is clear to you now, if not get back to me with questions. Good luck and good night 
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