code: func (t StreamType) DefaultContentType() types.ContentType {
  	switch logpb.StreamType(t) {
  	case logpb.StreamType_TEXT:
  		return types.ContentTypeText
  
  	case logpb.StreamType_DATAGRAM:
  		return types.ContentTypeLogdogDatagram
  
  	case logpb.StreamType_BINARY:
  		fallthrough
  	default:
  		return types.ContentTypeBinary
  	}
  }
docs: // DefaultContentType returns the default ContentType for a given stream type.