import type { AnalyticsReader, DateRangeInput } from '@contractspec/lib.contracts-integrations';
import type { AggregatedOperationMetrics, OperationSequence, TelemetrySample } from '../intent/aggregator';
export interface ReadTelemetrySamplesInput {
    operations?: {
        name: string;
        version: string;
    }[];
    dateRange?: DateRangeInput;
    limit?: number;
}
export interface PosthogBaselineReaderOptions {
    eventPrefix?: string;
}
export declare class PosthogBaselineReader {
    private readonly reader;
    private readonly eventPrefix;
    constructor(reader: AnalyticsReader, options?: PosthogBaselineReaderOptions);
    readSamples(input: ReadTelemetrySamplesInput): Promise<TelemetrySample[]>;
    readAggregatedMetrics(operation: {
        name: string;
        version: string;
    }, windowDays?: number): Promise<AggregatedOperationMetrics | null>;
    readOperationSequences(dateRange?: DateRangeInput): Promise<OperationSequence[]>;
    private readTopErrors;
    private queryHogQL;
}