export interface Config {
    vouchHost?: string | URL;
    customerId?: string;
    apiKey?: string;
}
export interface WidgetUrlParams {
    widgetId: string;
    redirectBackUrl: string;
    webhookUrl?: string;
    metadata?: string;
}
export interface DataSourceUrlParams {
    datasourceId: string;
    redirectBackUrl: string;
    requestId?: string;
    webhookUrl?: string;
    inputs?: Record<string, unknown>;
    metadata?: string;
}
export interface DataSourceUrlResult {
    verificationUrl: string;
    requestId: string;
}
export type WidgetUrlResult = DataSourceUrlResult;
export declare class Vouch {
    host: URL;
    customerId?: string;
    apiKey?: string;
    constructor({ vouchHost, customerId, apiKey, }?: Config);
    getDataSourceUrl({ datasourceId, redirectBackUrl, requestId, webhookUrl, inputs, metadata, }: DataSourceUrlParams): Promise<DataSourceUrlResult>;
    getWidgetUrl({ widgetId, redirectBackUrl, webhookUrl, metadata, }: WidgetUrlParams): Promise<WidgetUrlResult>;
    private createProofRequest;
}