// The command line tool kubectl, for example, allows use of the singular resource name in place of plurals.
  // The singular form of a resource should always be an optional element - when in doubt use the canonical resource name.
  optional string singularResource = 4;

	}
	if !l.perRevision {
		// Function to use to decide whether this leader should steal the existing lock.
		// This is disable when perRevision is used, as this enables the Lease. Lease doesn't have a holderKey field to place our key
		// as holderKey is an Istio specific fork.
		// While its possible to make it work with Lease as well (via an annotation to store it), we don't ever need prioritized

    ```

## Request body + path + query parameters

You can also declare **body**, **path** and **query** parameters, all at the same time.

**FastAPI** will recognize each of them and take the data from the correct place.

=== "Python 3.10+"

    ```Python hl_lines="16"
    {!> ../../../docs_src/body/tutorial004_py310.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="18"

	// The command line tool kubectl, for example, allows use of the singular resource name in place of plurals.
	// The singular form of a resource should always be an optional element - when in doubt use the canonical resource name.
	SingularResource string `json:"singularResource" protobuf:"bytes,4,opt,name=singularResource"`

		// set s.sweepgen to indicate s is swept.
		atomic.Store(&s.sweepgen, sg-1)
	} else {
		// Indicate that s is no longer cached.
		atomic.Store(&s.sweepgen, sg)
	}

	// Put the span in the appropriate place.
	if stale {
		// It's stale, so just sweep it. Sweeping will put it on
		// the right list.
		//
		// We don't use a sweepLocker here. Stale cached spans
		// aren't in the global sweep lists, so mark termination

		atomic.Xadduintptr(&total, uintptr(-int64(inc)))
	})
	if total != 0 {
		t.Fatalf("xadduintpr total error, want %d, got %d", 0, total)
	}
}

// Tests that xadduintptr correctly updates 64-bit values. The place where
// we actually do so is mstats.go, functions mSysStat{Inc,Dec}.
func TestXadduintptrOnUint64(t *testing.T) {
	if goarch.BigEndian {
		// On big endian architectures, we never use xadduintptr to update

	v.m.Clear()
	return v
}

// addKey updates the sorted list of keys in v.keys.
func (v *Map) addKey(key string) {
	v.keysMu.Lock()
	defer v.keysMu.Unlock()
	// Using insertion sort to place key into the already-sorted v.keys.
	i, found := slices.BinarySearch(v.keys, key)
	if found {
		return
	}
	v.keys = slices.Insert(v.keys, i, key)
}

func (v *Map) Get(key string) Var {

	updateMu.Lock()
	defer updateMu.Unlock()

	// Update all the cached values, creating new ones as needed.
	// We parse the environment variable first, so that any settings it has
	// are already locked in place (did[name] = true) before we consider
	// the defaults.
	did := make(map[string]bool)
	parse(did, env)
	parse(did, def)

	// Clear any cached values that are no longer present.

		for ; nstk < len(pcBuf) && nstk-1 < len(stk); nstk++ {
			pcBuf[nstk] = uintptr(stk[nstk-1])
		}

		// Write out a trace event.
		w := unsafeTraceWriter(gen, trace.cpuBuf[gen%2])

		// Ensure we have a place to write to.
		var flushed bool
		w, flushed = w.ensure(2 + 5*traceBytesPerNumber /* traceEvCPUSamples + traceEvCPUSample + timestamp + g + m + p + stack ID */)
		if flushed {
			// Annotate the batch as containing strings.

		// After eliminating them, we may end up with fewer than n matches.
		// If we don't have enough at the end, redo the search with an
		// increased value n1, but only if Lookup returned all the requested
		// indices in the first place (if it returned fewer than that then
		// there cannot be more).
		for n1 := n; ; n1 += 2 * (n - len(result)) /* overflow ok */ {
			indices := x.Lookup(lit, n1)
			if len(indices) == 0 {
				return
			}