export declare class CreateConversationError extends Error {
    constructor(message: string, cause?: unknown);
}
export declare class SendMessageError extends Error {
    constructor(message: string, cause?: unknown);
}
export declare class InvalidDeltaContentError extends Error {
    constructor(message: string, cause?: unknown);
}
export declare class UnexpectedSseEndingError extends Error {
    constructor(message: string, cause?: unknown);
}
export declare class InsufficientBalanceError extends Error {
    constructor(message?: string, cause?: unknown);
}