How to use the node-libcurl.Curl function in node-libcurl

'use strict';

// apt-get install libcurl4-openssl-dev

// IF YOU USE 32-BIT NODEJS:
// patch /usr/include/curl/curlbuild.h
// #define CURL_SIZEOF_LONG 4
// #define CURL_SIZEOF_CURL_OFF_T 4

var Curl = require('node-libcurl').Curl;
var curl = new Curl();
curl.setOpt('URL', 'www.yandex.ru');
curl.setOpt('FOLLOWLOCATION', true);
curl.on('end', function (status) {
  if (status === 200) {
    console.log('ok');
  }
  this.close(); // eslint-disable-line no-invalid-this
});
curl.perform();

return new Promise((resolve, reject) => {
            const curl = new Curl();

            const postData = createUploadPostData(mutation, filePaths, mapVariables);
            const processedPostData = [
                {
                    name: 'operations',
                    contents: JSON.stringify(postData.operations),
                },
                {
                    name: 'map',
                    contents:
                        '{' +
                        Object.entries(postData.map)
                            .map(([i, path]) => `"${i}":["${path}"]`)
                            .join(',') +
                        '}',
                },

T.async(done => {
              const req = new C.Curl();
              const reqHead = [
                ...(isJson(requestType)
                  ? ["Content-Type: application/json"]
                  : []),
                ...pipe(
                  headers,
                  R.collect((k, v) => `${k}: ${v}`)
                )
              ];

              req.setOpt("URL", url);
              req.setOpt("CAINFO", caPath);
              req.setOpt("FOLLOWLOCATION", 1);
              req.setOpt("VERBOSE", 0);
              req.setOpt("SSL_VERIFYHOST", 2);
              req.setOpt("SSL_VERIFYPEER", 1);

this._reset = () => {
        this.curl = new Curl();
    };