import type { TelemetryBatch } from './post-telemetry';
import type { ProxyAgentDiagnostics } from '../proxy-agent';
/**
 * What the parent hands to this process.
 */
export interface TelemetrySenderConfig {
    /**
     * Absolute URL to POST the telemetry payload to.
     */
    readonly endpoint: string;
    /**
     * The batch of events to deliver.
     */
    readonly body: TelemetryBatch;
    /**
     * Proxy to route through. An empty string means "explicitly no proxy", as `--proxy ''` does.
     *
     * @default - resolved from the inherited proxy environment variables, as in the parent
     */
    readonly proxyUrl?: string;
    /**
     * Absolute path to a CA bundle to trust. The path, not the contents: a system bundle is ~190KB.
     *
     * @default - the default Node trust store, plus anything in `NODE_EXTRA_CA_CERTS`
     */
    readonly caBundlePath?: string;
    /**
     * Budget for the delivery attempt, in milliseconds.
     *
     * @default 10000
     */
    readonly timeoutMs?: number;
}
/**
 * POST a telemetry payload, routing through a proxy when one applies.
 *
 * Returns the status code for the caller to judge, and lets failures reject: every outcome is handled
 * in one place, in the entry point.
 */
export declare function sendTelemetry(cfg: TelemetrySenderConfig): Promise<number | undefined>;
export declare function isSuccess(statusCode: number | undefined): boolean;
/**
 * Diagnostics for the detached child, which has no IoHost.
 */
export declare const senderDiagnostics: ProxyAgentDiagnostics;
/**
 * Only visible when the parent was run with `CDK_TELEMETRY_SENDER_DEBUG=1`, which is also what makes
 * it pass this process's stderr through. Synchronous because `process.exit` discards buffered writes.
 */
export declare function trace(message: string): void;