export declare function setDefaultValue(key: string, value: string): void;
export declare function reInitializePackageJson(directory?: string): void;
/**
 * Resolve "variableName" with a prefix of "ENV_CONFIG_PREFIX"
 * @param variableName The variable to use
 */
export default function resolveConfig(variableName: string): string | undefined;
/**
 * Convert "1, on, yes, true" to true (otherwise false)
 * @param env The String / Environment Variable to check
 */
export declare function envToBool(env: string): boolean;
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