guzzle - Where is the get() function in PHP GuzzleHttp?

one text

I'm trying to overwrite the get() function of GuzzleHttp Client but I can't find it in the source code.

I found the file vendor/guzzlehttp/guzzle/src/Client.php but there is no get() function inside it.

I'm trying to overwrite the get function, so I can implement our own cache function(we want to store and retrieve data from a .json file.

The first question is how can I see the code related to the get() function? so I can overwrite it more easily. I wrote this code:

class SiteManagerService extends Client
{
    public function get($uri)
    {
        die($uri);
    }
}

I overwrite the get function, but I don't know how $uri works and what should it returns and how to handle the options? etc...

The second part of my question is do you have any better solution for our custom cache system?

so far I've tried https://github.com/Kevinrob/guzzle-cache-middleware and it's caching well, but not in the format I want, because we want.

I want it to be a mycustomname.json with custom values inside it, and the package has its own file names with its own values... so I can't work with it...

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