func (f IndicesFreeze) WithOpaqueID(s string) func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		if r.Header == nil {
			r.Header = make(http.Header)
		}
		r.Header.Set("X-Opaque-Id", s)
	}
}
WithOpaqueID adds the X-Opaque-Id header to the HTTP request.
package esapi
import (
	"context"
	"net/http"
	"strconv"
	"strings"
	"time"
)
func newIndicesFreezeFunc(t Transport) IndicesFreeze {
	return func(index string, o ...func(*IndicesFreezeRequest)) (*Response, error) {
		var r = IndicesFreezeRequest{Index: index}
		for _, f := range o {
			f(&r)
		}
		return r.Do(r.ctx, t)
	}
}
type IndicesFreeze func(index string, o ...func(*IndicesFreezeRequest)) (*Response, error)
type IndicesFreezeRequest struct {
	Index string
	AllowNoIndices      *bool
	ExpandWildcards     string
	IgnoreUnavailable   *bool
	MasterTimeout       time.Duration
	Timeout             time.Duration
	WaitForActiveShards string
	Pretty     bool
	Human      bool
	ErrorTrace bool
	FilterPath []string
	Header http.Header
	ctx context.Context
}
func (r IndicesFreezeRequest) Do(ctx context.Context, transport Transport) (*Response, error) {
	var (
		method string
		path   strings.Builder
		params map[string]string
	)
	method = "POST"
	path.Grow(1 + len(r.Index) + 1 + len("_freeze"))
	path.WriteString("/")
	path.WriteString(r.Index)
	path.WriteString("/")
	path.WriteString("_freeze")
	params = make(map[string]string)
	if r.AllowNoIndices != nil {
		params["allow_no_indices"] = strconv.FormatBool(*r.AllowNoIndices)
	}
	if r.ExpandWildcards != "" {
		params["expand_wildcards"] = r.ExpandWildcards
	}
	if r.IgnoreUnavailable != nil {
		params["ignore_unavailable"] = strconv.FormatBool(*r.IgnoreUnavailable)
	}
	if r.MasterTimeout != 0 {
		params["master_timeout"] = formatDuration(r.MasterTimeout)
	}
	if r.Timeout != 0 {
		params["timeout"] = formatDuration(r.Timeout)
	}
	if r.WaitForActiveShards != "" {
		params["wait_for_active_shards"] = r.WaitForActiveShards
	}
	if r.Pretty {
		params["pretty"] = "true"
	}
	if r.Human {
		params["human"] = "true"
	}
	if r.ErrorTrace {
		params["error_trace"] = "true"
	}
	if len(r.FilterPath) > 0 {
		params["filter_path"] = strings.Join(r.FilterPath, ",")
	}
	req, err := newRequest(method, path.String(), nil)
	if err != nil {
		return nil, err
	}
	if len(params) > 0 {
		q := req.URL.Query()
		for k, v := range params {
			q.Set(k, v)
		}
		req.URL.RawQuery = q.Encode()
	}
	if len(r.Header) > 0 {
		if len(req.Header) == 0 {
			req.Header = r.Header
		} else {
			for k, vv := range r.Header {
				for _, v := range vv {
					req.Header.Add(k, v)
				}
			}
		}
	}
	if ctx != nil {
		req = req.WithContext(ctx)
	}
	res, err := transport.Perform(req)
	if err != nil {
		return nil, err
	}
	response := Response{
		StatusCode: res.StatusCode,
		Body:       res.Body,
		Header:     res.Header,
	}
	return &response, nil
}
func (f IndicesFreeze) WithContext(v context.Context) func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.ctx = v
	}
}
func (f IndicesFreeze) WithAllowNoIndices(v bool) func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.AllowNoIndices = &v
	}
}
func (f IndicesFreeze) WithExpandWildcards(v string) func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.ExpandWildcards = v
	}
}
func (f IndicesFreeze) WithIgnoreUnavailable(v bool) func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.IgnoreUnavailable = &v
	}
}
func (f IndicesFreeze) WithMasterTimeout(v time.Duration) func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.MasterTimeout = v
	}
}
func (f IndicesFreeze) WithTimeout(v time.Duration) func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.Timeout = v
	}
}
func (f IndicesFreeze) WithWaitForActiveShards(v string) func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.WaitForActiveShards = v
	}
}
func (f IndicesFreeze) WithPretty() func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.Pretty = true
	}
}
func (f IndicesFreeze) WithHuman() func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.Human = true
	}
}
func (f IndicesFreeze) WithErrorTrace() func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.ErrorTrace = true
	}
}
func (f IndicesFreeze) WithFilterPath(v ...string) func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		r.FilterPath = v
	}
}
func (f IndicesFreeze) WithHeader(h map[string]string) func(*IndicesFreezeRequest) {
	return func(r *IndicesFreezeRequest) {
		if r.Header == nil {
			r.Header = make(http.Header)
		}
		for k, v := range h {
			r.Header.Add(k, v)
		}
	}
}