export interface CoverageScopePattern {
    readonly pattern: string;
    /** Repository-relative files the pattern selected, sorted. */
    readonly artifacts: readonly string[];
}
export type ArtifactCoverage = {
    readonly assessed: false;
    readonly reason: string;
} | {
    readonly assessed: true;
    readonly scope: readonly CoverageScopePattern[];
};
export declare function deriveArtifactCoverage(manifestDirectory: string, patterns: readonly string[] | undefined): ArtifactCoverage;