/**
 * Get a value from "variables.json" in the current working directory.
 *
 * The name must exist or an error will be thrown.
 *
 * The variables.json file should have variablesTimestamp field
 * with a timestamp no longer than 6 hours old.
 *
 * To be used with sourceType "cdk-source" in LifligCdkPipeline.
 */
export declare function getVariable(name: string): string;