func NewCumulativeSumAggregation() *CumulativeSumAggregation {
	return &CumulativeSumAggregation{
		subAggregations: make(map[string]Aggregation),
		bucketsPaths:    make([]string, 0),
	}
}
NewCumulativeSumAggregation creates and initializes a new CumulativeSumAggregation.
package elastic
type CumulativeSumAggregation struct {
	format string
	subAggregations map[string]Aggregation
	meta            map[string]interface{}
	bucketsPaths    []string
}