[Bug]: Missing Http adapter helper functions

### What happened?

All other adapters seem to have helper functions like `from_*` (`from_xml`), the Http Adapter lacks those.

### How to reproduce?

```php
Try to use some Http adpater helper methods.
```

### Data required to reproduce bug locally

n/a


### Version

0.26

### Relevant error output

```shell
N/a
```