/**
 * Check if the code is running in a browser environment
 */
export declare const isBrowser: boolean;
/**
 * Check if the code is running in a Node.js environment
 */
export declare const isNode: string | false;
/**
 * Create a Buffer-like object that works in both browser and Node.js
 */
export declare function createBuffer(data: ArrayBuffer | Buffer<ArrayBuffer> | string): CrossPlatformBuffer;
/**
 * Convert Buffer/Uint8Array to string
 */
export declare function bufferToString(buffer: Buffer | Uint8Array): string;
/**
 * Create a File object that works in both environments
 */
export declare function createFile(data: CrossPlatformBuffer | string, name: string, type?: string): File | Blob;
/**
 * Create FormData that works in both environments
 */
export declare function createFormData(): FormData;
/**
 * Type for cross-platform buffer
 */
export type CrossPlatformBuffer = ArrayBuffer | Uint8Array<ArrayBuffer>;
/**
 * Check if a value is a cross-platform buffer
 */
export declare function isCrossPlatformBuffer(value: unknown): value is CrossPlatformBuffer;
/**
 * Type for cross-platform file
 */
export type CrossPlatformFile = File | Blob;
/**
 * Type for cross-platform file response with headers
 */
export interface CrossPlatformFileResponse {
    data: CrossPlatformBuffer;
    headers: Record<string, unknown>;
}
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