import { RendererFactory2 } from '@angular/core';
import { Meta, Title } from '@angular/platform-browser';
import * as i0 from "@angular/core";
export interface LinkDefinition {
    charset?: string;
    crossorigin?: string;
    href?: string;
    hreflang?: string;
    media?: string;
    rel?: string;
    rev?: string;
    sizes?: string;
    target?: string;
    type?: string;
    [prop: string]: string | undefined;
}
export interface OpenGraph {
    title?: string;
    description?: string;
    type?: string;
    url?: string;
    image?: string;
    site_name?: string;
    [prop: string]: string | undefined;
}
export interface Tags {
    title?: string;
    description?: string;
    url?: string;
    robots?: Robots;
    image?: string;
}
export declare type Robots = 'index,follow' | 'index,nofollow' | 'noindex,nofollow' | 'noindex,follow' | 'index, follow' | 'index, nofollow' | 'noindex, nofollow' | 'noindex, follow';
export declare class MetafrenzyService {
    private readonly title;
    private readonly meta;
    private readonly rendererFactory;
    private document;
    constructor(title: Title, meta: Meta, rendererFactory: RendererFactory2, document: any);
    setTitle(title: string): void;
    getTitle(): string;
    setMetaTag(name: string, content: string): void;
    getMetaTag(selector: string, returnElement?: boolean): string | HTMLMetaElement;
    removeMetaTag(selector: string | HTMLMetaElement): void;
    setMetaCharsetTag(value: string): void;
    removeLinkTags(shouldRemoveLinkTagCb: (linkTag: HTMLLinkElement) => boolean): void;
    setLinkTag(tag: LinkDefinition): void;
    setAllTitleTags(title: string): void;
    setAllDescriptionTags(description: string): void;
    setCanonical(href: string): void;
    removeCanonical(): void;
    setRobots(content: Robots): void;
    setOpenGraph(og: OpenGraph): void;
    setTags(tags: Tags): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<MetafrenzyService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<MetafrenzyService>;
}