func (s *MultiTermvectorService) Headers(headers http.Header) *MultiTermvectorService {
	s.headers = headers
	return s
}
Headers specifies the headers of the request.
package elastic
import (
	"context"
	"encoding/json"
	"fmt"
	"net/http"
	"net/url"
	"strings"
	"github.com/olivere/elastic/v7/uritemplates"
)
type MultiTermvectorService struct {
	client *Client
	pretty     *bool        
	human      *bool        
	errorTrace *bool        
	filterPath []string     
	headers    http.Header  
	index           string
	typ             string
	fieldStatistics *bool
	fields          []string
	ids             []string
	offsets         *bool
	parent          string
	payloads        *bool
	positions       *bool
	preference      string
	realtime        *bool
	routing         string
	termStatistics  *bool
	version         interface{}
	versionType     string
	bodyJson        interface{}
	bodyString      string
	docs            []*MultiTermvectorItem
}
func NewMultiTermvectorService(client *Client) *MultiTermvectorService {
	return &MultiTermvectorService{
		client: client,
	}
}
func (s *MultiTermvectorService) Pretty(pretty bool) *MultiTermvectorService {
	s.pretty = &pretty
	return s
}
func (s *MultiTermvectorService) Human(human bool) *MultiTermvectorService {
	s.human = &human
	return s
}
func (s *MultiTermvectorService) ErrorTrace(errorTrace bool) *MultiTermvectorService {
	s.errorTrace = &errorTrace
	return s
}
func (s *MultiTermvectorService) FilterPath(filterPath ...string) *MultiTermvectorService {
	s.filterPath = filterPath
	return s
}
func (s *MultiTermvectorService) Header(name string, value string) *MultiTermvectorService {
	if s.headers == nil {
		s.headers = http.Header{}
	}
	s.headers.Add(name, value)
	return s
}