syntax = "proto3"; package grpc.gateway.examples.internal.proto.oneofenum; option go_package = "github.com/grpc-ecosystem/grpc-gateway/v2/examples/internal/proto/oneofenum"; enum ExampleEnum { EXAMPLE_ENUM_UNSPECIFIED = 0; EXAMPLE_ENUM_FIRST = 1; } message OneofEnumMessage { oneof one { ExampleEnum example_enum = 1; } }