func (s *XPackWatcherDeleteWatchService) Do(ctx context.Context) (*XPackWatcherDeleteWatchResponse, error) {
	if err := s.Validate(); err != nil {
		return nil, err
	}
	path, params, err := s.buildURL()
	if err != nil {
		return nil, err
	}
	res, err := s.client.PerformRequest(ctx, PerformRequestOptions{
		Method: "DELETE",
		Path:   path,
		Params: params,
	})
	if err != nil {
		return nil, err
	}
	ret := new(XPackWatcherDeleteWatchResponse)
	if err := json.Unmarshal(res.Body, ret); err != nil {
		return nil, err
	}
	return ret, nil
}
Do executes the operation.
package elastic
import (
	"context"
	"encoding/json"
	"fmt"
	"net/url"
	"github.com/olivere/elastic/uritemplates"
)
type XPackWatcherDeleteWatchService struct {
	client        *Client
	pretty        bool
	id            string
	masterTimeout string
}
func NewXPackWatcherDeleteWatchService(client *Client) *XPackWatcherDeleteWatchService {
	return &XPackWatcherDeleteWatchService{
		client: client,
	}
}
func (s *XPackWatcherDeleteWatchService) Id(id string) *XPackWatcherDeleteWatchService {
	s.id = id
	return s
}
func (s *XPackWatcherDeleteWatchService) MasterTimeout(masterTimeout string) *XPackWatcherDeleteWatchService {
	s.masterTimeout = masterTimeout
	return s
}
func (s *XPackWatcherDeleteWatchService) Pretty(pretty bool) *XPackWatcherDeleteWatchService {
	s.pretty = pretty
	return s
}
func (s *XPackWatcherDeleteWatchService) buildURL() (string, url.Values, error) {
	path, err := uritemplates.Expand("/_xpack/watcher/watch/{id}", map[string]string{
		"id": s.id,
	})
	if err != nil {
		return "", url.Values{}, err
	}
	params := url.Values{}
	if s.pretty {
		params.Set("pretty", "true")
	}
	if s.masterTimeout != "" {
		params.Set("master_timeout", s.masterTimeout)
	}
	return path, params, nil
}
func (s *XPackWatcherDeleteWatchService) Validate() error {
	var invalid []string
	if s.id == "" {
		invalid = append(invalid, "Id")
	}
	if len(invalid) > 0 {
		return fmt.Errorf("missing required fields: %v", invalid)
	}
	return nil
}