/**
 * TSDB destination emitters for log10x_backfill_metric.
 *
 * The MVP supports Datadog (api.datadoghq.com /api/v2/series) out of the
 * box because it needs only a public API key. Prometheus remote_write,
 * CloudWatch and Elastic are wired as stub destinations that
 * return a clear "not yet implemented" error at runtime — the caller
 * sees exactly which destinations work today without the tool silently
 * dropping the call.
 *
 * Destination selection is driven entirely by environment variables set
 * on the MCP server process, matching the Log10x convention of "no
 * secrets in tool input". The model never gets the API key.
 */
import type { MetricPoint } from './aggregator.js';
export type Destination = 'datadog' | 'prometheus' | 'cloudwatch' | 'elastic';
export interface EmitOptions {
    destination: Destination;
    metricName: string;
    /** Ms since epoch of the earliest point in the series — used for warning on backdated-ingestion limits. */
    earliestTimestampMs?: number;
    /** Extra destination-specific configuration passed through. */
    config?: Record<string, unknown>;
    /** Tags to apply to every point (union with the per-point labels). */
    staticTags?: Record<string, string>;
}
export interface EmitResult {
    destination: Destination;
    pointsEmitted: number;
    bytesPosted: number;
    wallTimeMs: number;
    warnings: string[];
    /** Best-effort URL to view the metric in the destination UI. Optional. */
    viewUrl?: string;
}
/**
 * Emit a pre-aggregated series to the configured destination.
 *
 * Throws if the destination is not supported or if credentials are
 * missing. The backfill_metric tool catches and surfaces the error to
 * the user.
 */
export declare function emitSeries(points: MetricPoint[], options: EmitOptions): Promise<EmitResult>;