Reference documentation and code samples for the Compute Engine v1 API enum UsableSubnetwork.Types.Purpose.
The purpose of the resource. This field can be either PRIVATE, GLOBAL_MANAGED_PROXY, REGIONAL_MANAGED_PROXY, PRIVATE_SERVICE_CONNECT, or PRIVATE is the default purpose for user-created subnets or subnets that are automatically created in auto mode networks. Subnets with purpose set to GLOBAL_MANAGED_PROXY or REGIONAL_MANAGED_PROXY are user-created subnetworks that are reserved for Envoy-based load balancers. A subnet with purpose set to PRIVATE_SERVICE_CONNECT is used to publish services using Private Service Connect. If unspecified, the subnet purpose defaults to PRIVATE. The enableFlowLogs field isn't supported if the subnet purpose field is set to GLOBAL_MANAGED_PROXY or REGIONAL_MANAGED_PROXY.