expected: ErrUnsignedHeaders,
		},
		// (4) Should give an expired request if it has expired.
		{
			queryParams: map[string]string{
				"X-Amz-Algorithm":      signV4Algorithm,
				"X-Amz-Date":           now.AddDate(0, 0, -2).Format(iso8601Format),
				"X-Amz-Expires":        "60",
				"X-Amz-Signature":      "badsignature",
				"X-Amz-SignedHeaders":  "host;x-amz-content-sha256;x-amz-date",

			// Do not change any configuration
			// upon NTP failure.
			return r
		}

		if config.Rule.DefaultRetention.Days != nil {
			r.Validity = t.AddDate(0, 0, int(*config.Rule.DefaultRetention.Days)).Sub(t)
		} else {
			r.Validity = t.AddDate(int(*config.Rule.DefaultRetention.Years), 0, 0).Sub(t)
		}
	}

	return r
}

// Maximum 4KiB size per object lock config.

				Bucket: bucket,
				Err:    fmt.Errorf("invalid query parameter older-than %s for %s : %w", durationStr, bucket, err),
			}), r.URL)
			return
		}
	}
	resetBeforeDate := UTCNow().AddDate(0, 0, -1*int(days/24))

	objectAPI := api.ObjectAPI()
	if objectAPI == nil {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
		return
	}

                               attr_value_proto->length)) {
    status->status = absl::InvalidArgumentError("Invalid AttrValue proto");
    return;
  }

  mutex_lock l(graph->mu);
  op->node.AddAttr(attr_name, attr_val);
  RecordMutation(graph, *op, "setting attribute");
}

void TF_ClearAttr(TF_Graph* graph, TF_Operation* op, const char* attr_name,
                  TF_Status* status) {