/**
 * @param {import('@uploadcare/upload-client').CustomUserAgentOptions} options
 * @returns {ReturnType<import('@uploadcare/upload-client').CustomUserAgentFn>}
 */
export function customUserAgent(options: import('@uploadcare/upload-client').CustomUserAgentOptions): ReturnType<import('@uploadcare/upload-client').CustomUserAgentFn>;
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