import type { AggregatedResult, Config, Reporter, ReporterOnStartOptions, Test, TestContext, TestResult } from '@jest/reporters';
import type { SlowtestConfig } from '../../../domain.objects/SlowtestConfig';
/**
 * .what = jest reporter implementation for slowtest
 * .why = collects test time via jest reporter lifecycle hooks
 */
export declare class SlowtestReporterJest implements Reporter {
    private config;
    private files;
    private thresholdMs;
    constructor(_globalConfig: Config.GlobalConfig, options?: SlowtestConfig);
    /**
     * .what = called when test run starts
     * .why = optional; can be used for init
     */
    onRunStart(_results: AggregatedResult, _options: ReporterOnStartOptions): void;
    /**
     * .what = called after each test file completes
     * .why = collect per-file and per-test time data
     */
    onTestFileResult(_test: Test, testResult: TestResult, _aggregatedResult: AggregatedResult): void;
    /**
     * .what = called when test file starts
     * .why = optional; not used for slowtest
     */
    onTestFileStart(_test: Test): void;
    /**
     * .what = called when a test case result is available
     * .why = optional; we use onTestFileResult instead
     */
    onTestCaseResult(_test: Test, _testCaseResult: unknown): void;
    /**
     * .what = called after all tests complete
     * .why = emit terminal report and write json file
     */
    onRunComplete(_testContexts: Set<TestContext>, results: AggregatedResult): Promise<void>;
    /**
     * .what = get the last error encountered
     * .why = required by Reporter interface
     */
    getLastError(): Error | undefined;
}
export default SlowtestReporterJest;