/**
 * A type of fact, either an artifact or a finding.
 *
 * Examples:
 * - { artifactType: "Page.ContentAnalysis" }
 * - { findingType: "LayoutComparison.IncorrectDimensions" }
 */
export declare type FactType = {
    artifactType: string;
} | {
    findingType: string;
};
/**
 * A request for a fact, i.e. an artifact or a finding.
 */
export declare class FactRequest {
    readonly factType: FactType;
    readonly params?: any;
    constructor(factType: FactType, params?: any);
    asJson(): any;
}