recordError(operation, err)
	return err
}

func (in instrumentedRuntimeService) ExecSync(ctx context.Context, containerID string, cmd []string, timeout time.Duration) ([]byte, []byte, error) {
	const operation = "exec_sync"
	defer recordOperation(operation, time.Now())

	stdout, stderr, err := in.service.ExecSync(ctx, containerID, cmd, timeout)
	recordError(operation, err)
	return stdout, stderr, err
}

func findFunction(name string, tmpl *Template) (v reflect.Value, isBuiltin, ok bool) {
	if tmpl != nil && tmpl.common != nil {
		tmpl.muFuncs.RLock()
		defer tmpl.muFuncs.RUnlock()
		if fn := tmpl.execFuncs[name]; fn.IsValid() {
			return fn, false, true
		}
	}
	if fn := builtinFuncs()[name]; fn.IsValid() {
		return fn, true, true
	}
	return reflect.Value{}, false, false
}