rwmb_set_meta returns nothing

Hi,

This helper function does not return anything. It helps you to set meta value for an object. Please read more on the documentation https://docs.metabox.io/rwmb-set-meta/

After setting the value, you can use the helper function rwmb_meta() to retrieve the value.

I second this, @netalys. Being able to do something like this would be very helpful:

$result = rwmb_set_meta( $post_id, $field_id, $value );

if ($result === true) {
    // update successfully
} else {
    // update failed
}