/**
 * useFileUpload Hook
 *
 * Hook for uploading files with progress tracking.
 * Progress is tracked globally via store (updated by streams).
 * Errors propagate through global error handling (error boundaries, global error store).
 *
 * @returns {CoreFileUploadResult} Object containing:
 * - `upload` - Upload a single file
 * - `uploadMultiple` - Upload multiple files in parallel
 * - `isUploading` - Whether any upload is in progress
 * - `currentFileIds` - IDs of files currently uploading
 * - `progress` - Overall upload progress (0-100)
 * - `cancel` - Cancel all active uploads
 *
 * @example Basic usage
 * ```typescript
 * const { upload, uploadMultiple, isUploading, currentFileIds, progress, cancel } = useFileUpload();
 *
 * const handleUpload = async (file: File) => {
 *   const result = await upload(file, {
 *     entityType: 'user',
 *     entityId: '123',
 *     category: 'documents',
 *   });
 *   console.log('Uploaded:', result);
 * };
 *
 * return (
 *   <button onClick={() => handleUpload(file)} disabled={isUploading}>
 *     {isUploading ? `Uploading ${progress}%` : 'Upload'}
 *   </button>
 * );
 * ```
 *
 * @example Bulk upload
 * ```typescript
 * const { uploadMultiple, isUploading, cancel } = useFileUpload();
 *
 * const handleBulkUpload = async (files: FileList) => {
 *   const results = await uploadMultiple(Array.from(files), {
 *     entityType: 'project',
 *     entityId: 'proj-456',
 *   });
 * };
 *
 * // Cancel all uploads
 * cancel();
 * ```
 */
import { type CoreFileUploadResult } from '@plyaz/types/core';
/**
 * Hook for uploading files with progress tracking.
 * @returns Upload functions and state
 */
export declare function useFileUpload(): CoreFileUploadResult;
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