import { PipeTransform } from '@angular/core';
export declare class FontSizePipe implements PipeTransform {
    transform(value: string): number;
}
export declare class FontStylesPipe implements PipeTransform {
    transform(value: string): string;
}
export declare class StatefulSlicePipe implements PipeTransform {
    private slicedArray;
    private previousArrayRef;
    private previousEndValue;
    transform(arr: any[], start: number, end: number): any;
}