filters.add(new LowestVersionFilter(num));
                } else if ("s".equals(expression)) {
                    filters.add(new ContextualSnapshotVersionFilter());
                } else if ("ns".equals(expression)) {
                    filters.add(new SnapshotVersionFilter());
                } else if (expression.startsWith("e(") && expression.endsWith(")")) {

	if opts.CheckPrecondFn != nil {
		if !opts.NoLock {
			ns := er.NewNSLock(bucket, object)
			lkctx, err := ns.GetLock(ctx, globalOperationTimeout)
			if err != nil {
				return nil, err
			}
			ctx = lkctx.Context()
			defer ns.Unlock(lkctx)
			opts.NoLock = true
		}

		obj, err := er.getObjectInfo(ctx, bucket, object, opts)

            T t = delegate.get();
            value = t;
            nanos = now + durationNanos;
            // In the very unlikely event that nanos is 0, set it to 1;
            // no one will notice 1 ns of tardiness.
            expirationNanos = (nanos == 0) ? 1 : nanos;
            return t;
          }
        }
      }
      // This is safe because we checked `expirationNanos`.

            T t = delegate.get();
            value = t;
            nanos = now + durationNanos;
            // In the very unlikely event that nanos is 0, set it to 1;
            // no one will notice 1 ns of tardiness.
            expirationNanos = (nanos == 0) ? 1 : nanos;
            return t;
          }
        }
      }
      // This is safe because we checked `expirationNanos`.

pkg net, method (*Resolver) LookupIPAddr(context.Context, string) ([]IPAddr, error)
pkg net, method (*Resolver) LookupMX(context.Context, string) ([]*MX, error)
pkg net, method (*Resolver) LookupNS(context.Context, string) ([]*NS, error)
pkg net, method (*Resolver) LookupPort(context.Context, string, string) (int, error)
pkg net, method (*Resolver) LookupSRV(context.Context, string, string, string) (string, []*SRV, error)

            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          },
          "unit": "ns"
        },
        "overrides": []
      },
      "gridPos": {
        "h": 2,
        "w": 3,
        "x": 0,
        "y": 10
      },
      "id": 80,
      "maxDataPoints": 100,

	cpSrcDstSame := isStringEqual(pathJoin(srcBucket, srcObject), pathJoin(dstBucket, dstObject))

	if !dstOpts.NoLock {
		ns := z.NewNSLock(dstBucket, dstObject)
		lkctx, err := ns.GetLock(ctx, globalOperationTimeout)
		if err != nil {
			return ObjectInfo{}, err
		}
		ctx = lkctx.Context()
		defer ns.Unlock(lkctx)
		dstOpts.NoLock = true
	}

     *     <li>"l" or "l(num)" - lowest version or bottom list of lowest ones filter</li>
     *     <li>"s" - contextual snapshot filter</li>
     *     <li>"ns" - unconditional snapshot filter (no snapshots selected from ranges)</li>
     *     <li>"e(G:A:V)" - predicate filter (leaves out G:A:V from range, if hit, V can be range)</li>
     * </ul>

                overallTimeMs);
        System.out.printf("  Avg allocation time: %.2f ns%n", avgAllocTimeNs);
        System.out.printf("  Avg release time: %.2f ns%n", avgReleaseTimeNs);

        // Verify O(1) performance - should be reasonably fast (allowing for JVM overhead)

            .charAt(0);
    if (overWaitNanosFirstDigit < '4') {
      overWaitNanosFirstDigit = '9';
    }
    String nanosRegex = "[4-" + overWaitNanosFirstDigit + "][0-9]+";
    assertWithMessage("Spent %s ns blocked; slept for %s ms", thread.timeSpentBlocked, toWaitMillis)
        .that(thread.exception)
        .hasMessageThat()
        .matches(
            "Waited 2 seconds \\(plus "
                + (longWait ? "3" : "1")