3.1.6 Requester out: req_decor_soap = tas3_wsc_prepare_call(cf, ses, svctype, az_cred, req_soap)

This API function decorates a request envelope with necessary ID-WSF SOAP headers and signs it, but does not send the envelope. This API is used as a building block in tas3_call(), which see. Usually you should use tas3_call() instead of this API function.