export declare enum SmoothChunkingStrategy {
    Word = "word",
    Sentence = "sentence",
    Character = "char"
}
export interface SmoothStreamOptions {
    /** Enable smooth streaming. Set to false to get raw tokens. Default: true */
    enabled?: boolean;
    /** Delay between chunk emissions in milliseconds. Default varies by provider */
    delay?: number;
    /** How to break up content into chunks */
    chunking?: SmoothChunkingStrategy | RegExp | ((buffer: string) => string | null);
}
/**
 * Configuration options for UI streaming mode
 */
export interface StreamOptions {
    /**
     * Enable UI-focused streaming mode
     * @default true (simplified events for better DX)
     */
    enabled?: boolean;
    /**
     * Whether to show real-time token streaming in the UI
     * @default true
     */
    showTokenStream?: boolean;
    /**
     * Minimum interval between message updates (in milliseconds)
     * Helps prevent UI flicker with very fast token streams
     * @default 30
     */
    updateInterval?: number;
    /**
     * Whether to include token usage information in metadata
     * @default false
     */
    includeUsage?: boolean;
    /**
     * Custom tool descriptions for better UI display
     * Maps tool names to human-readable descriptions
     */
    toolDescriptions?: Record<string, string>;
    /**
     * Whether to automatically retry on recoverable errors
     * @default true
     */
    autoRetry?: boolean;
    /**
     * Maximum number of retry attempts
     * @default 3
     */
    maxRetries?: number;
    /**
     * Smooth streaming options
     */
    smooth?: SmoothStreamOptions;
}