import { RahaApiError } from "../..";
export declare const ERROR_CODE = "mint.referral.usernameAlreadyExists";
export interface UsernameAlreadyExistsErrorBody {
    errorCode: typeof ERROR_CODE;
    username: string;
}
/**
 * Member tries to redeem referral bonus they have already redeemed
 */
export declare class UsernameAlreadyExistsError extends RahaApiError<typeof ERROR_CODE, UsernameAlreadyExistsErrorBody> {
    readonly errorCode: typeof ERROR_CODE;
    constructor(username: string);
}
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