import { FlakinessReport as FK } from '@flakiness/flakiness-report';
export declare function isFlag(arg: string, name: string): boolean;
export type Flag = {
    name: string;
    aliases: string[];
};
export type ArgsSpec = {
    values?: Flag[];
    bools?: Flag[];
};
export type ParsedArgs = {
    values: Record<string, string>;
    flags: Set<string>;
    passthrough: string[];
};
export declare function parseArgs(args: string[], spec: ArgsSpec): ParsedArgs;
export declare function formatDuration(durationMS: number): string;
export declare function readReportFile(aPath: string, label?: string): Promise<FK.Report>;
export declare function runPlaywright(args: string[], env: NodeJS.ProcessEnv, inheritStdio: boolean): number;
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