export type SdkSource = 'npm' | 'cdn' | 'loader' | 'aws-lambda-layer';
/**
 * Figures out if we're building a browser bundle.
 *
 * @returns true if this is a browser bundle build.
 */
export declare function isBrowserBundle(): boolean;
/**
 * Get source of SDK.
 */
export declare function getSDKSource(): SdkSource;
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