You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: jwt_parse_request_example_test.go
    path of file: ./repos/jwx/examples
    
    the code of the file until where you have to start completion: package examples_test

import (
	"fmt"
	"net/http"
	"net/url"

	"github.com/lestrrat-go/jwx/v2/jwt"
)

func ExampleJWT_ParseRequest_Authorization() {
	req, err := http.NewRequest(http.MethodGet, `https://github.com/lestrrat-go/jwx`, nil)
	if err != nil {
		fmt.Printf("failed to create request: %s\n", err)
		return
	}
	req.Form = url.Values{}
	req.Form.Add("access_token", exampleJWTSignedHMAC)

	req.Header.Set(`Authorization`, fmt.Sprintf(`Bearer %s`, exampleJWTSignedECDSA))
	req.Header.Set(`X-JWT-Token`, exampleJWTSignedRSA)


    
func ExampleJWT_ParseRequest_Authorization() {
	req, err := http.NewRequest(http.MethodGet, `https://github.com/lestrrat-go/jwx`, nil)
	if err != nil {
		fmt.Printf("failed to create request: %s\n", err)
		return
	}
	req.Form = url.Values{}
	req.Form.Add("access_token", exampleJWTSignedHMAC)

	req.Header.Set(`Authorization`, fmt.Sprintf(`Bearer %s`, exampleJWTSignedECDSA))
	req.Header.Set(`X-JWT-Token`, exampleJWTSignedRSA)

	req.AddCookie(&http.Cookie{Name: "accessToken", Value: exampleJWTSignedHMAC})

	var dst *http.Cookie

	testcases := []struct {
		options []jwt.ParseOption
	}{
		// No options - looks under "Authorization" header
		{},
		// Looks under "X-JWT-Token" header only
		{
			options: []jwt.ParseOption{jwt.WithHeaderKey(`X-JWT-Token`)},
		},
		// Looks under "Authorization" and "X-JWT-Token" headers
		{
			options: []jwt.ParseOption{jwt.WithHeaderKey(`Authorization`), jwt.WithHeaderKey(`X-JWT-Token`)},
		},
		// Looks under "Authorization" header and "access_token" form field
		{
			options: []jwt.ParseOption{jwt.WithFormKey(`access_token`)},
		},
		// Looks under "accessToken" cookie, and assigns the http.Cookie object
		// where the token came from to the variable `dst`
		{
			options: []jwt.ParseOption{jwt.WithCookieKey(`accessToken`), jwt.WithCookie(&dst)},
		},
	}

	for _, tc := range testcases {
		options := append(tc.options, []jwt.ParseOption{jwt.WithVerify(false), jwt.WithValidate(false)}...)
		tok, err := jwt.ParseRequest(req, options...)
		if err != nil {
			fmt.Print("jwt.ParseRequest with options [")
			for i, option := range tc.options {
				if i > 0 {
					fmt.Print(", ")
				}
				fmt.Printf("%s", option)
			}
			fmt.Printf("]: %s\n", err)
			return
		}
		_ = tok
	}

	if dst == nil {
		fmt.Printf("failed to assign cookie to dst\n")
		return
	}
	// OUTPUT:
}