References: google.golang.org/protobuf/internal/genid.GoFeatures_STRIP_ENUM_PREFIX_GENERATE_BOTH_enum

const google.golang.org/protobuf/internal/genid.GoFeatures_STRIP_ENUM_PREFIX_GENERATE_BOTH_enum_value

one use

	google.golang.org/protobuf/internal/genid (current package)
		go_features_gen.go#L63: 	GoFeatures_STRIP_ENUM_PREFIX_GENERATE_BOTH_enum_value = 2

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