28 type Aggregator struct {  struct
34 var _ export.Aggregator = &Aggregator{}
35 var _ export.Subtractor = &Aggregator{}
36 var _ aggregation.Sum = &Aggregator{}
41 func New(cnt int) []Aggregator {
42 	return make([]Aggregator, cnt)
46 func (c *Aggregator) Aggregation() aggregation.Aggregation {  argument
51 func (c *Aggregator) Kind() aggregation.Kind {  argument
57 func (c *Aggregator) Sum() (number.Number, error) {  argument
63 func (c *Aggregator) SynchronizedMove(oa export.Aggregator, _ *metric.Descriptor) error {  argument
64 	o, _ := oa.(*Aggregator)
73 func (c *Aggregator) Update(_ context.Context, num number.Number, desc *metric.Descriptor) error {  argument
79 func (c *Aggregator) Merge(oa export.Aggregator, desc *metric.Descriptor) error {  argument
80 	o, _ := oa.(*Aggregator)
88 func (c *Aggregator) Subtract(opAgg, resAgg export.Aggregator, descriptor *metric.Descriptor) error…  argument
89 	op, _ := opAgg.(*Aggregator)
94 	res, _ := resAgg.(*Aggregator)