Function register 

pub fn register(name: &str, func: NativeFn)

Registers a function handler under a specific name inside the dynamic FFI registry.

Example

use std::collections::HashMap;
use void_sdk_rust::{register, Value};
 
fn my_handler(args: HashMap<String, Value>) -> Result<Value, String> {
    Ok(Value::String("Hello!".to_string()))
}
 
register("greet", my_handler);