func (q *MatchPhrasePrefixQuery) Analyzer(analyzer string) *MatchPhrasePrefixQuery {
	q.analyzer = analyzer
	return q
}
Analyzer explicitly sets the analyzer to use. It defaults to use explicit
mapping config for the field, or, if not set, the default search analyzer.
package elastic
type MatchPhrasePrefixQuery struct {
	name          string
	value         interface{}
	analyzer      string
	slop          *int
	maxExpansions *int
	boost         *float64
	queryName     string
}
func NewMatchPhrasePrefixQuery(name string, value interface{}) *MatchPhrasePrefixQuery {
	return &MatchPhrasePrefixQuery{name: name, value: value}
}