/**
 * Create a temporary directory and return the path with every symlink resolved.
 *
 * The `realpathSync` wrapper is the whole point: it must stay OUTSIDE
 * `mkdtempSync`, because the directory has to exist before it can be resolved.
 *
 * @param suffix distinguishes roots in a listing; the name is `vigiles-<suffix>-*`
 */
export declare function makeTmpDir(suffix?: string): string;
/** Remove a root made by {@link makeTmpDir}. Safe on a path that is already gone. */
export declare function cleanupTmpDir(dir: string): void;
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