import type { OgResult, RuleInput } from '../types.js';
export type OgRequiredRuleOptions = {
    /** OGP tags to require. Defaults to the 4 essential tags. */
    tags?: string[];
};
/**
 * Validates the presence of required Open Graph meta tags.
 *
 * Pass: all required og: tags exist with non-empty content
 * Fail: one or more required tags are missing or have empty content
 */
export declare function checkOgRequired(input: RuleInput, options?: OgRequiredRuleOptions): OgResult;
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