How to add loading for filament wizard Next Step Button?

Wizard::make([
Step::make('General Information')
->schema(ClientResourceForm::getFields())
->columns(),
Step::make('Address Information')
->schema(AddressResourceForm::getFields('address.state')),
Step::make('Agency Connection')
->schema(self::getConnectionFormField()),
])
->nextAction(
fn(Action $action) => $action
->label('Next step'),
)