export declare const SwappaErrorType: {
    readonly MathError: "MathError";
    readonly HydrationError: "HydrationError";
};
export type SwappaErrorTypeValue = typeof SwappaErrorType[keyof typeof SwappaErrorType];
export declare class SwappaError<EType extends SwappaErrorTypeValue | unknown> extends Error {
    private readonly _type;
    constructor(_type: EType, message: string);
    get type(): EType;
    static is(e: unknown): e is SwappaError<SwappaErrorTypeValue>;
}
export declare class SwappaMathError extends SwappaError<typeof SwappaErrorType.MathError> {
    constructor(message: string);
    static is(e: unknown): e is SwappaMathError;
}