if *retention.Days > maximumRetentionDays {
			return fmt.Errorf("Default retention period too large for 'Days' %d", *retention.Days)
		}
	} else if *retention.Years == 0 {
		return fmt.Errorf("Default retention period must be a positive integer value for 'Years'")
	} else if *retention.Years > maximumRetentionYears {
		return fmt.Errorf("Default retention period too large for 'Years' %d", *retention.Years)
	}

	*dr = DefaultRetention(retention)

	"runtime"
	"sync"
	"testing"
	. "time"
)

func TestTicker(t *testing.T) {
	t.Parallel()

	// We want to test that a ticker takes as much time as expected.
	// Since we don't want the test to run for too long, we don't
	// want to use lengthy times. This makes the test inherently flaky.
	// Start with a short time, but try again with a long one if the
	// first test fails.

	baseCount := 10
	baseDelta := 20 * Millisecond

				},
			},
		},

		"too-many-translated-claim-parameters": {
			pod:     podWithClaimName,
			claims:  []*resourcev1alpha2.ResourceClaim{claimWithCRD(pendingDelayedClaimWithParams)},
			classes: []*resourcev1alpha2.ResourceClass{classWithCRD(structuredResourceClassWithCRD)},
			objs:    []apiruntime.Object{claimParameters, st.FromClaimParameters(claimParameters).Name("other").Obj() /* too many */, classParameters, workerNodeSlice},

            } else {
                // If the key is not a string, it can only affect properties that were set by the build logic. There is
                // no need to persist the removal, but the set value should not be persisted too. A placeholder value
                // will keep the key mutated to avoid recording it as an input.
                mutatedSystemProperties[key] = SystemPropertyIgnored
            }
        }

        1                 | 10                     | 10               | "configured period for deprecated build cache cleanup when both are configured"
    }

    def "produces reasonable message when cache retention is too short (#days days)"() {
        settingsFile << """
            buildCache {
                local {
                    removeUnusedEntriesAfterDays = ${days}
                }
            }
        """

			// 1.2.3.4.5
			if pos == 3 {
				return parseAddrError{in: in, msg: "IPv4 address too long"}
			}
			fields[pos] = uint8(val)
			pos++
			val = 0
			digLen = 0
		} else {
			return parseAddrError{in: in, msg: "unexpected character", at: s[i:]}
		}
	}
	if pos < 3 {
		return parseAddrError{in: in, msg: "IPv4 address too short"}
	}
	fields[3] = uint8(val)
	return nil
}

<img src="/img/tutorial/path-operation-advanced-configuration/image01.png">

And if you see the resulting OpenAPI (at `/openapi.json` in your API), you will see your extension as part of the specific *path operation* too:

```JSON hl_lines="22"
{
    "openapi": "3.1.0",
    "info": {
        "title": "FastAPI",
        "version": "0.1.0"
    },
    "paths": {
        "/items/": {
            "get": {

		case 2:
			if (rt == objabi.R_PCREL || rt == objabi.R_CALL) && o != int64(int16(o)) {
				st.err.Errorf(s, "pc-relative relocation address for %s is too big: %#x", ldr.SymName(rs), o)
			} else if o != int64(int16(o)) && o != int64(uint16(o)) {
				st.err.Errorf(s, "non-pc-relative relocation address for %s is too big: %#x", ldr.SymName(rs), uint64(o))
			}
			target.Arch.ByteOrder.PutUint16(P[off:], uint16(o))
		case 4:

	"internal/buildcfg"
	"log"
	"math"
	"math/bits"
	"strings"
)

// Test if this value can encoded as a mask for
// li -1, rx; rlic rx,rx,sh,mb.
// Masks can also extend from the msb and wrap to
// the lsb too. That is, the valid masks are 32 bit strings
// of the form: 0..01..10..0 or 1..10..01..1 or 1...1
func isPPC64DoublewordRotateMask(v64 int64) bool {
	// Isolate rightmost 1 (if none 0) and add.
	v := uint64(v64)

// package or [google.golang.org/protobuf] for protocol buffers.
package binary

import (
	"errors"
	"io"
	"math"
	"reflect"
	"slices"
	"sync"
)

var errBufferTooSmall = errors.New("buffer too small")

// A ByteOrder specifies how to convert byte slices into
// 16-, 32-, or 64-bit unsigned integers.
//
// It is implemented by [LittleEndian], [BigEndian], and [NativeEndian].
type ByteOrder interface {