export interface ParsedInvoice {
    text: string;
    kwh: number | null;
    month: number | null;
    year: number | null;
}
export declare class InvoiceParserService {
    private readonly logger;
    parse(filePath: string, mimeType: string): Promise<ParsedInvoice>;
    private extractKwh;
    private parseNumber;
    private extractDate;
}