import type { HttpClient } from "../../http";
import type { Msg91Response } from "../../types";
import type { SendOtpParams, SendOtpResponse, VerifyOtpParams, VerifyOtpResponse, ResendOtpParams, ResendOtpResponse } from "./types";
/**
 * Service for SMS OTP operations
 */
export declare class SmsOtpService {
    private readonly http;
    constructor(http: HttpClient);
    /**
     * Send an OTP to a mobile number
     *
     * @example
     * ```typescript
     * const { data, error } = await msg91.smsOtp.send({
     *   templateId: 'your_template_id',
     *   mobile: '919876543210',
     *   otpLength: 6,
     *   otpExpiry: 5,
     * });
     *
     * if (error) {
     *   console.error('Failed to send OTP:', error.message);
     * } else {
     *   console.log('OTP sent successfully');
     * }
     * ```
     */
    send(params: SendOtpParams): Promise<Msg91Response<SendOtpResponse>>;
    /**
     * Verify an OTP entered by the user
     *
     * @example
     * ```typescript
     * const { data, error } = await msg91.smsOtp.verify({
     *   otp: '123456',
     *   mobile: '919876543210',
     * });
     *
     * if (error) {
     *   console.error('OTP verification failed:', error.message);
     * } else {
     *   console.log('OTP verified successfully');
     * }
     * ```
     */
    verify(params: VerifyOtpParams): Promise<Msg91Response<VerifyOtpResponse>>;
    /**
     * Resend an OTP via text SMS or voice call
     *
     * @example
     * ```typescript
     * const { data, error } = await msg91.smsOtp.resend({
     *   mobile: '919876543210',
     *   retryType: 'text', // or 'voice'
     * });
     *
     * if (error) {
     *   console.error('Failed to resend OTP:', error.message);
     * } else {
     *   console.log('OTP resent successfully');
     * }
     * ```
     */
    resend(params: ResendOtpParams): Promise<Msg91Response<ResendOtpResponse>>;
}
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