//
// Panics if `labels` is not a list of ordered label name and label value pairs
// or if all labels for the metric are not provided.
func (m *MetricValues) Set(name MetricName, value float64, labels ...string) {
	desc, ok := m.descriptors[name]
	if !ok {
		panic(fmt.Sprintf("metric has no description: %s", name))
	}

	if len(labels)%2 != 0 {
		panic("labels must be a list of ordered key-value pairs")
	}

	metacacheSharePrefix = false
)

//go:generate msgp -file $GOFILE -unexported

// metacache contains a tracked cache entry.
type metacache struct {
	// do not re-arrange the struct this struct has been ordered to use less
	// space - if you do so please run https://github.com/orijtech/structslop
	// and verify if your changes are optimal.
	ended        time.Time  `msg:"end"`
	started      time.Time  `msg:"st"`

		}
	}

	return getStorageInfo(localDisks, localEndpoints, metrics)
}

// getOnlineDisksWithHealingAndInfo - returns online disks and overall healing status.
// Disks are ordered in the following groups:
// - Non-scanning disks
// - Non-healing disks
// - Healing disks (if inclHealing is true)

// current design.
type erasureSets struct {
	sets []*erasureObjects

	// Reference format.
	format *formatErasureV3

	// erasureDisks mutex to lock erasureDisks.
	erasureDisksMu sync.RWMutex

	// Re-ordered list of disks per set.
	erasureDisks [][]StorageAPI

	// Distributed locker clients.
	erasureLockers setsDsyncLockers

	// Distributed lock owner (constant per running instance).
	erasureLockOwner string

	"errors"
	"fmt"
	"sync"
)

// ErrBatchFull indicates that the batch is full
var ErrBatchFull = errors.New("batch is full")

type key interface {
	string | int | int64
}

// Batch represents an ordered batch
type Batch[K key, T any] struct {
	keys  []K
	items map[K]T
	limit uint32

	sync.Mutex
}

// Add adds the item to the batch
func (b *Batch[K, T]) Add(key K, item T) error {
	b.Lock()