func (opt withContextOption) apply(o *lookupOptions) error {
	if o.ctx != nil {
		return ErrDuplicateOption
	}
	o.ctx = opt.Ctx
	return nil
}
// apply simply applies the option.
apply simply applies the option.
// apply simply applies the option .
func (opt withContextOption) apply(o *lookupOptions) error {
	if o.ctx != nil {
		return ErrDuplicateOption
	}
	o.ctx = opt.Ctx
	return nil
}
func ( opt withContextOption ) apply ( o * lookupOptions ) error { if o . ctx != nil { return ErrDuplicateOption } o . ctx = opt . Ctx return nil }
apply simply applies the option.
apply simply applies the option .