/**
 * Base error class for all Lumic utilities errors
 * Provides standardized error handling across all external service integrations
 */
export declare class LumicError extends Error {
    readonly code: string;
    readonly service: string;
    readonly isRetryable: boolean;
    readonly cause?: unknown | undefined;
    name: string;
    constructor(message: string, code: string, service: string, isRetryable?: boolean, cause?: unknown | undefined);
}
/**
 * Error class for Slack API operations
 * Marks errors as retryable by default since Slack issues are often transient
 */
export declare class SlackError extends LumicError {
    constructor(message: string, code?: string, cause?: unknown);
}
/**
 * Error class for LLM (Language Learning Model) operations
 * Includes model information for better debugging
 * Marks rate limit errors as retryable
 */
export declare class LLMError extends LumicError {
    readonly model?: string | undefined;
    constructor(message: string, code?: string, model?: string | undefined, cause?: unknown);
}
/**
 * Error class for AWS Lambda function invocations
 * Marks throttled errors as retryable
 */
export declare class AWSLambdaError extends LumicError {
    constructor(message: string, code?: string, cause?: unknown);
}
/**
 * Error class for AWS S3 operations
 * Marks errors as retryable by default since S3 issues are often transient
 */
export declare class AWSS3Error extends LumicError {
    constructor(message: string, code?: string, cause?: unknown);
}
/**
 * Error class for Google Sheets API operations
 * Marks quota exceeded errors as retryable
 */
export declare class GoogleSheetsError extends LumicError {
    constructor(message: string, code?: string, cause?: unknown);
}
/**
 * Error class for Perplexity API operations
 * Marks errors as retryable by default
 */
export declare class PerplexityError extends LumicError {
    constructor(message: string, code?: string, cause?: unknown);
}
/**
 * Error class for JSON parsing operations
 * Not retryable since malformed JSON won't fix itself
 */
export declare class JsonParseError extends LumicError {
    constructor(message: string, cause?: unknown);
}
/**
 * Error class for PDF operations
 * Not retryable since PDF generation issues are typically configuration or content related
 */
export declare class PDFError extends LumicError {
    constructor(message: string, cause?: unknown);
}
/**
 * Error class for Zip file operations
 * Not retryable since file system issues are typically configuration or permission related
 */
export declare class ZipError extends LumicError {
    constructor(message: string, cause?: unknown);
}