machine
Optional. The type of machine on which to serve the model. Currently only applies to online prediction service. To learn about valid values for this field, read /ai-platform/prediction/docs/machine-types-online-prediction. If this field is not specified and you are using a /ai-platform/prediction/docs/regional-endpoints, then the machine type defaults to n1-standard-2. If this field is not specified and you are using the global endpoint (ml.googleapis.com), then the machine type defaults to mls1-c1-m2.