import type { Logger } from "../base/client-utils.js";
import type { LogLevel } from "../support-files/console-logger.js";
export declare function ensureTrailingSlash(url: string): string;
/**
 * Get an environment variable using process.env, if in browser, return undefined
 */
export declare const getEnvVariable: (key: string) => string | undefined;
export declare function isBrowser(): boolean;
export declare function throwIfEmpty(value: string | null | undefined, paramName?: string): void;
export declare function log(logger: Logger | undefined, type: Exclude<LogLevel, "silent">, msg: unknown, ...args: unknown[]): void;
export declare function pMapIterable<T, R>(items: T[], mapper: (item: T, index: number) => Promise<R>, { concurrency }: {
    concurrency: number;
}): Promise<R[]>;
//# sourceMappingURL=index.d.ts.map