Call web service methods

Hi,

I'm trying exchange .xml data with web service in access 365 vba. Now i'm using WinHttpRequest.5.1 to get SSL certificate from system and authenticate to the web service. It's working.

How can i reference to (call) web service functions ("Upload" "CheckState" "GetTransportDocumentsUIDs" "StateHistory")?
May be different classes needed?

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