role

val role: GeneratedMessage.GeneratedExtension<DescriptorProtos.MessageOptions, DatapointType>
Specifies the type of datapoint represented by a given message entity. This can be `RECORD` (generally used for
arbitrary datamodel objects), `EVENT` (specialized telemetry event records), `TABLE` (tabular data, generally used
for analytics events / BigQuery).
extend .google.protobuf.MessageOptions { ... }