Fails on large definitions

Hi there, I'm trying to read [Cloudflare's](https://github.com/cloudflare/api-schemas/) API definitions into this package but it's about 5MB and `json_decode()` definitely doesn't like working with files that big. Does anyone have any suggestions for how to read in such a large file, or would the devs be open to replacing the stock `json_decode()` with a reader that can handle larger files?

Thanks!

Review the package's JSON loading path around json_decode() and determine why the 5MB Cloudflare API definition cannot be read. Compare viable approaches for large JSON input, then verify that the reported definition loads successfully without breaking existing JSON handling.

Scritto dal modello di indicizzazione a partire dal testo della issue.