/** Returns an object if the given value isn't an object, otherwise returns as-is */
export declare function maybeObj(x: unknown): object;
export declare function isEmptyObj(obj: Object | null | undefined): boolean;
export declare function hasOwn(obj: Object, key: string): boolean;
export declare function debug(action: string, ...args: any[]): void;
/**
 * https://stackoverflow.com/a/2117523
 */
export declare const uuid4: () => string;
/**
 * Encodes a string to Base64 format.
 */
export declare const toBase64: (str: string | null | undefined) => string;
export declare function isObj(obj: unknown): obj is Record<string, unknown>;
export declare const sleep: (ms: number) => Promise<unknown>;
export declare const ensurePresent: <T>(value: T | null | undefined) => T;
/**
 * Read an environment variable.
 *
 * Trims beginning and trailing whitespace.
 *
 * Will return undefined if the environment variable doesn't exist or cannot be accessed.
 */
export declare const readEnv: (env: string) => string | undefined;
export declare const safeJSON: (text: string) => any;
export declare const isAbsoluteURL: (url: string) => boolean;
export declare const validatePositiveInteger: (name: string, n: unknown) => number;
export declare const coerceInteger: (value: unknown) => number;
export declare const coerceFloat: (value: unknown) => number;
export declare const coerceBoolean: (value: unknown) => boolean;
export declare const maybeCoerceInteger: (value: unknown) => number | undefined;
export declare const maybeCoerceFloat: (value: unknown) => number | undefined;
export declare const maybeCoerceBoolean: (value: unknown) => boolean | undefined;
//# sourceMappingURL=utils.d.ts.map