How to use the v8-profiler-next.stopProfiling function in v8-profiler-next

suite.on('complete', function () {
    if(bench.profile) {
      const profile = profiler.stopProfiling(profileId);
      profile.export((error, result) => {
        if (error) {
          return;
        }
        writeFile(`${dirname(bench.file)}/${profileId}`, result, () => {
          profile.delete();
        });
      });
    }
  });
  // add listeners

it(description, function () {
        const inputs = getInput(testCase);
        if (shouldError(testCase, index)) {
          expect(testFunc.bind(null, ...inputs)).to.throw();
        } else {
          const profileId = `${description}-${Date.now()}.profile`;
          if (env.GEN_PROFILE_DIR) {
            profiler.startProfiling(profileId);
          }
          const result = testFunc(...inputs);
          if (env.GEN_PROFILE_DIR) {
            const profile = profiler.stopProfiling(profileId);
            const directory = env.GEN_PROFILE_DIR || __dirname;
            profile.export((error, result) => {
              if (error) {
                return;
              }
              writeFile(`${directory}/${profileId}`, result, () => {
                profile.delete();
              });
            });
          }
          const actual = getActual(result);
          const expected = getExpected(testCase);
          expectFunc(testCase, expect, expected, actual);
        }
      });

it(basename(testCaseDirectoryPath), function () {
    const testCase = loadInputFiles(testCaseDirectoryPath, options);
    if(options.shouldSkip && options.shouldSkip(testCase, basename(testCaseDirectoryPath))) {
      return this.skip();
    }
    if(options.shouldError && options.shouldError(testCase)) {
      expect(testFunction.bind(null, testCase, basename(testCaseDirectoryPath))).to.throw;
    } else {
      const profileId = `${name}-${Date.now()}.profile`;
      const profilingDirectory = process.env.GEN_PROFILE_DIR;
      if (profilingDirectory) {
        profiler.startProfiling(profileId);
      }
      const result = testFunction(testCase, basename(testCaseDirectoryPath));
      if (profilingDirectory) {
        const profile = profiler.stopProfiling(profileId);

        generateProfileReport(profile, profilingDirectory, profileId);
      }
      const expected = options.getExpected(testCase);
      options.expectFunc(testCase, expected, result, basename(testCaseDirectoryPath));
    }
  });
}

return () => {
    let profile = profiler.stopProfiling();

    new Promise(resolve =>
      profile
        .export()
        .pipe(fs.createWriteStream(name + ".cpuprofile"))
        .on("finish", function() {
          profile.delete();
          resolve();
        })
    );
  };
}

setTimeout(() => {
    const profile = v8Profiler.stopProfiling(path);
    profile.export((err, result) => {
      if (err) {
        return callback(err);
      }
      fs.writeFileSync(path, result);
      profile.delete();
      setTimeout(function () {
        process.send(JSON.stringify({ msg: 'resume_monitoring' }));
      }, ms('5s'));
      return callback(null, path);
    });
  }, timeout);
};

router.get('/stop-profiling', async (ctx, next) => {
  const result = v8Profiler.stopProfiling('p1')
  if (result) {
    await writeFile('./samples.cpuprofile', JSON.stringify(result))
    ctx.body = 'saved profile'
  } else {
    ctx.body = 'nothing to show'
  }
})