export interface NgWizardStepInterface {
    /**
     * Return false if your step component's state is invalid and navigation to the next step should
     * be denied.
     * When returning false make sure to display a relevant (error) message telling the user why the
     * navigation is denied.
     */
    wsIsValid(): boolean;
    /**
     * Perform any task before the wizard goes to a next step.
     * Return false to cancel the wizard's navigation.
     */
    wsOnNext(): void | boolean;
    /**
     * Perform any task before the wizard goes to a previous step.
     * Return false to cancel the wizard's navigation.
     */
    wsOnPrevious(): void | boolean;
}