import { MatSnackBar, MatSnackBarHorizontalPosition, MatSnackBarVerticalPosition } from '@angular/material/snack-bar';
export declare class ToastService {
    private _snackBar;
    horizontalPosition: MatSnackBarHorizontalPosition;
    verticalPosition: MatSnackBarVerticalPosition;
    constructor(_snackBar: MatSnackBar);
    showError(msg: any, title?: string, duration?: number): void;
    showSuccess(msg: any, title?: string, duration?: number): void;
    showWarning(msg: any, title?: string, duration?: number): void;
    showInfo(msg: any, title?: string, duration?: number): void;
}