问选脸融合接口（FuseFace）的SDK中，怎么传入Region值？

# 实例化一个client选项，可选的，没有特殊需求可以跳过。
clientProfile = ClientProfile()
clientProfile.signMethod = "TC3-HMAC-SHA256"  # 指定签名算法(默认为HmacSHA256)
clientProfile.unsignedPayload = True
clientProfile.httpProfile = httpProfile

client = facefusion_client.FacefusionClient(cred, "", clientProfile)
req = models.FuseFaceRequest()

req.ProjectId = "300216"
req.ModelId = ModelID
req.RspImgType = "base64"
req.MergeInfos = []
TempImageData = MergeInfo()

obj = MergeInfo()
obj.Image = sceneImageKey

req.MergeInfos.append(obj)

req.FuseProfileDegree = FuseProfileDegree
req.FuseFaceDegree = FuseFaceDegree
#req.Region = "ap-guangzhou"
#req.

resp = client.FuseFace(req)