$_name
$_name : string
Class Phrase.
This function can be used to handle params for queries, filter
setConfidence(float  $confidence) : $this
                Set the factor applied to the input phrases score to be used as a threshold for other suggestion candidates.
Only candidates which score higher than this threshold will be included in the result.
| float | $confidence | Defaults to 1.0. | 
addCandidateGenerator(\Elastica\Suggest\CandidateGenerator\AbstractCandidateGenerator  $generator) : $this
                
| \Elastica\Suggest\CandidateGenerator\AbstractCandidateGenerator | $generator |