python(feat): updated exports.proto to support parquet

Author: wei-qlu

protos/sift/exports/v1/exports.proto

@@ -55,6 +55,7 @@ enum ExportOutputFormat {
   EXPORT_OUTPUT_FORMAT_UNSPECIFIED = 0;
   EXPORT_OUTPUT_FORMAT_CSV = 1;
   EXPORT_OUTPUT_FORMAT_SUN = 2;
+  EXPORT_OUTPUT_FORMAT_PARQUET = 3;
 }
 
 message TimeRange {
@@ -101,6 +102,9 @@ message ExportDataResponse {
 
   // This will be non-empty if the export is being processed asynchronously in a background job.
   string job_id = 2 [(google.api.field_behavior) = OPTIONAL];
+
+  // Optional message for the client to display in success or error notification (e.g. exclusions or 403 reason).
+  string service_message = 3 [(google.api.field_behavior) = OPTIONAL];
 }
 
 message GetDownloadUrlRequest {
@@ -109,4 +113,7 @@ message GetDownloadUrlRequest {
 
 message GetDownloadUrlResponse {
   string presigned_url = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Optional message for the client to display in success or error notification.
+  string service_message = 2 [(google.api.field_behavior) = OPTIONAL];
 }