pub trait NumOpsDispatch {
// Required methods
fn subtract(&self, rhs: &Series) -> PolarsResult<Series>;
fn add_to(&self, rhs: &Series) -> PolarsResult<Series>;
fn multiply(&self, rhs: &Series) -> PolarsResult<Series>;
fn divide(&self, rhs: &Series) -> PolarsResult<Series>;
fn remainder(&self, rhs: &Series) -> PolarsResult<Series>;
}