export type SourcePackageMetadata = {
    readonly packageName: string;
    readonly packageRoot: string;
    readonly namespace: string;
    readonly exports: Readonly<Record<string, string>>;
    readonly exportPaths: readonly string[];
    readonly ambient: readonly string[];
    readonly ambientPaths: readonly string[];
    readonly moduleAliases: Readonly<Record<string, string>>;
    readonly sourceRoot: string;
};
export declare const readSourcePackageMetadata: (packageRoot: string) => SourcePackageMetadata | null;
export declare const clearSourcePackageMetadataCachesForTests: () => void;
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