export type PaymentStandard = 'spayd' | 'epc' | 'auto';
export interface PaymentInput {
    iban: string;
    bic?: string;
    amount?: number;
    currency?: string;
    message?: string;
    variable_symbol?: string;
    constant_symbol?: string;
    recipient_name?: string;
    standard?: PaymentStandard;
}
export interface QrResult {
    qr_data_uri: string;
    payload: string;
    self_verified: boolean;
}
export interface PaymentQrResult extends QrResult {
    standard: 'spayd' | 'epc';
    warnings: string[];
}
export interface ReadQrResult {
    raw: string;
    type: string;
    parsed: Record<string, unknown> | null;
}
export declare class PayqrClient {
    payment(input: PaymentInput): Promise<PaymentQrResult>;
    text(text: string): Promise<QrResult>;
    wifi(input: {
        ssid: string;
        password?: string;
        security?: 'WPA' | 'WEP' | 'nopass';
        hidden?: boolean;
    }): Promise<QrResult>;
    vcard(input: {
        name: string;
        phone?: string;
        email?: string;
        org?: string;
    }): Promise<QrResult>;
    read(imageData: string): Promise<ReadQrResult>;
}
export declare function normalizeIban(iban: string): string;
export declare function isValidIban(iban: string): boolean;
export declare function resolveStandard(standard: PaymentStandard, iban: string): 'spayd' | 'epc';
export declare function buildSpaydPayload(input: PaymentInput, warnings?: string[]): string;
export declare function buildEpcPayload(input: PaymentInput, warnings?: string[]): string;
export declare function classifyQr(raw: string): ReadQrResult;
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