export declare function init({ key, accessKey, secretKey, log, tracing, environment, provider }?: {
    key?: string | undefined;
    accessKey?: string | undefined;
    secretKey?: string | undefined;
    log?: boolean | undefined;
    tracing?: boolean | undefined;
    environment?: string | undefined;
    provider?: string | undefined;
}): {
    customError: ({ origin, message, stack }: import("./model/error").EventError) => Promise<true | null | undefined> | undefined;
    metricsReportfy?: (() => Promise<string>) | undefined;
} | {
    customError: any;
    metricsReportfy: () => Promise<string>;
};
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