/**
 * Runtime validators for the benchkit OTLP semantic contract.
 *
 * These validators enforce the required attributes documented in
 * docs/otlp-semantic-conventions.md. They throw descriptive errors that
 * guide producers toward compliance.
 */
import { type Direction, type MetricRole, type RunKind, type SourceFormat } from "./otlp-conventions.js";
/**
 * Validates that all required resource-level attributes are present and valid.
 * Throws with a descriptive message on the first violation found.
 */
export declare function validateRequiredResourceAttributes(attrs: Record<string, string>): void;
/**
 * Validates that required datapoint-level attributes are present.
 *
 * For non-monitor metrics, `benchkit.scenario` and `benchkit.series` are
 * required. Monitor metrics (`_monitor.*`) are exempt since they default
 * to `"diagnostic"` scenario.
 */
export declare function validateRequiredDatapointAttributes(attrs: Record<string, string>, metricName: string): void;
/** Returns true if `value` is a valid `benchkit.kind`. */
export declare function isValidRunKind(value: string): value is RunKind;
/** Validates and returns a `RunKind`, or throws. */
export declare function validateRunKind(value: string | undefined): RunKind;
/** Returns true if `value` is a valid `benchkit.metric.direction`. */
export declare function isValidDirection(value: string): value is Direction;
/** Validates and returns a `Direction`, or throws. */
export declare function validateDirection(value: string | undefined): Direction;
/** Returns true if `value` is a valid `benchkit.metric.role`. */
export declare function isValidMetricRole(value: string): value is MetricRole;
/** Validates and returns a `MetricRole`, or throws. */
export declare function validateMetricRole(value: string | undefined): MetricRole;
/** Returns true if `value` is a valid `benchkit.source_format`. */
export declare function isValidSourceFormat(value: string): value is SourceFormat;
/** Validates and returns a `SourceFormat`, or throws. */
export declare function validateSourceFormat(value: string | undefined): SourceFormat;
/** Returns true if the metric name uses the reserved `_monitor.` prefix. */
export declare function isMonitorMetric(name: string): boolean;
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