Equivalent of https.agent

## Describe the bug

**Node.js version:** 21.6.2

**OS version:** MacOS sonoma 14.5

**Description:**
Hi
I need to send certificate in api request, so I was trying with axios but `new https.agent({})` is not supported by React Native as it is a Node API.
Is there any way I can use this package to fix this issue?

## Actual behavior

Getting error `This is not supported in browser version of superagent`

## Expected behavior

It should complete the request.

## Code to reproduce

```
try {
superagent
.put(
`myURL`,
)
.send({registrationId: registrationId}) // sends a JSON post body
.set('Content-Type', 'application/json')
.set('Content-Encoding', 'utf-8')
.agent({
cert: cert,
key: key,
})
.end((err, res) => {
if (err) {
console.log('err', err);
} else {
console.log('res', res);
}
// Calling the end function will send the request
});
} catch (err) {
console.log('err', err);
}
```
## Checklist

- [✓] I have searched through GitHub issues for similar issues.
- [✓] I have completely read through the README and documentation.
- [✓] I have tested my code with the latest version of Node.js and this package and confirmed it is still not working.
Thank you

Start with the reproduced .agent({ cert, key }) call and the “not supported in browser version” error, then inspect how the React Native/browser path differs from Node’s https.agent. Done would require a supported way to complete this certificate-bearing request, with behavior verified against the provided reproduction.

Written by the indexing model from the issue text.