import type { ProcessedAttachment } from './types';
export declare function parseUrls(input: string): string[];
export declare function parseLocalPaths(input: string): string[];
export declare function validateLocalFile(filePath: string): {
    valid: boolean;
    error?: string;
    absolutePath?: string;
};
export declare function processUrl(url: string, logger: any): Promise<{
    filePath: string | null;
    error: string | null;
}>;
export declare function processLocalPath(filePath: string, logger: any): Promise<{
    filePath: string | null;
    error: string | null;
    isConverted: boolean;
}>;
export declare function processLocalPaths(paths: string[], logger: any): Promise<{
    localFiles: string[];
    downloadedFiles: string[];
    errors: string[];
}>;
export declare function processUrls(urls: string[], logger: any): Promise<{
    filePaths: string[];
    errors: string[];
}>;
export declare function processAttachments(attachments: any, logger: any): Promise<ProcessedAttachment>;
export declare function cleanupFiles(filePaths: string[], logger: any): Promise<void>;