if r != utf8.RuneError {
			// r is 2 to 4 bytes
			if len(chars) == width {
				if chars == string(r) {
					return i
				}
				continue
			}
			// Use bytealg.IndexString for performance if available.
			if bytealg.MaxLen >= width {
				if bytealg.IndexString(chars, string(r)) >= 0 {
					return i
				}
				continue
			}
		}
		for _, ch := range chars {
			if r == ch {

* **Safer** types.
* Better **performance** and **less energy** consumption.
* Better **extensibility**.
* etc.

...all this while keeping the **same Python API**. In most of the cases, for simple models, you can simply upgrade the Pydantic version and get all the benefits. 🚀

In some cases, for pure data validation and processing, you can get performance improvements of **20x** or more. This means 2,000% or more. 🤯