Function wasmtime_wasi::instantiate_wasi

pub fn instantiate_wasi(
    prefix: &str, 
    global_exports: Rc<RefCell<HashMap<String, Option<Export>>>>, 
    preopened_dirs: &[(String, File)], 
    argv: &[String], 
    environ: &[(String, String)]
) -> Result<InstanceHandle, InstantiationError>

Return an instance implementing the "wasi" interface.