import { ILogger, URI } from '@theia/core';
import { FileService } from '@theia/filesystem/lib/browser/file-service';
/**
 * Determines the MIME type based on file extension.
 */
export declare function getMimeTypeFromExtension(filePath: string): string;
/**
 * Reads a file and converts its content to a base64-encoded string.
 */
export declare function fileToBase64(uri: URI, fileService: FileService, logger: ILogger): Promise<string>;
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