$_name
$_name : string
Class Histogram.
This function can be used to handle params for queries, filter
setScript(string|\Elastica\Script\AbstractScript  $script) : $this
                Set a script for this aggregation.
| string|\Elastica\Script\AbstractScript | $script | 
addAggregation(\Elastica\Aggregation\AbstractAggregation  $aggregation) : $this
                Add a sub-aggregation.
| \Elastica\Aggregation\AbstractAggregation | $aggregation |