/**
 * MetricsBatch — ergonomic, immutable wrapper over OtlpMetricsDocument.
 *
 * Flattens the nested OTLP structure into MetricPoint tuples and provides
 * chainable filter/group/merge operations. Round-trips cleanly to OTLP JSON.
 */
import type { OtlpMetricsDocument } from "./types.js";
import type { Direction, MetricRole } from "./otlp-conventions.js";
export interface MetricPoint {
    readonly scenario: string;
    readonly series: string;
    readonly metric: string;
    readonly value: number;
    readonly unit: string;
    readonly direction: Direction | undefined;
    readonly role: MetricRole | undefined;
    readonly tags: Readonly<Record<string, string>>;
    readonly timestamp: string | undefined;
}
export interface ResourceContext {
    readonly runId: string | undefined;
    readonly kind: string | undefined;
    readonly sourceFormat: string | undefined;
    readonly commit: string | undefined;
    readonly ref: string | undefined;
    readonly workflow: string | undefined;
    readonly job: string | undefined;
    readonly runAttempt: string | undefined;
    readonly runner: string | undefined;
    readonly serviceName: string | undefined;
}
export declare class MetricsBatch {
    readonly context: ResourceContext;
    readonly points: readonly MetricPoint[];
    private constructor();
    static fromOtlp(doc: OtlpMetricsDocument): MetricsBatch;
    static fromPoints(points: MetricPoint[], context?: ResourceContext): MetricsBatch;
    static merge(...batches: MetricsBatch[]): MetricsBatch;
    get size(): number;
    get scenarios(): string[];
    get metricNames(): string[];
    filter(fn: (p: MetricPoint) => boolean): MetricsBatch;
    forScenario(name: string): MetricsBatch;
    forMetric(name: string): MetricsBatch;
    withoutMonitor(): MetricsBatch;
    onlyMonitor(): MetricsBatch;
    groupBy(fn: (p: MetricPoint) => string): Map<string, MetricsBatch>;
    groupByScenario(): Map<string, MetricsBatch>;
    groupByMetric(): Map<string, MetricsBatch>;
    groupBySeries(): Map<string, MetricsBatch>;
    toOtlp(): OtlpMetricsDocument;
    toJson(): string;
}
export declare function seriesKey(p: MetricPoint): string;
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