Is is possible to publish a process model to asynch web services from Appian?

Is is possible to publish a process model to asynch web services from Appian?
I have a process model and published it into a web services and got the xml file. looking at the xml file, i see response and request node. Is there a way to make this Web Serice async? or are all appian web services are default to sync only?
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OriginalPostID-119416

OriginalPostID-119416

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