OperationId with backslash

curl --request GET \
     --url //petstore.swagger.io/v2/pet \
     --header 'accept: application/json' \
     --header 'accept-language: en-AU'

var myHeaders = new Headers();
myHeaders.append("accept", "application/json");
myHeaders.append("content-type", "application/json");
myHeaders.append("accept-language", "en-AU");

var requestOptions = {
   method: 'GET',
   headers: myHeaders,
   redirect: 'follow'
};

fetch("//petstore.swagger.io/v2/pet", requestOptions)
   .then(response => response.text())
   .then(result => console.log(result))
   .catch(error => console.log('error', error));

require "uri"
require "json"
require "net/http"

url = URI("//petstore.swagger.io/v2/pet")

http = Net::HTTP.new(url.host, url.port);
request = Net::HTTP::Get.new(url)
request["accept"] = "application/json"
request["content-type"] = "application/json"
request["accept-language"] = "en-AU"

response = http.request(request)
puts response.read_body

import requests
import json

url = "//petstore.swagger.io/v2/pet"

payload = {}
headers = {
   'accept': 'application/json',
   'content-type': 'application/json',
   'accept-language': 'en-AU'
}

response = requests.request("GET", url, headers=headers, data=payload)

print(response.text)