/**
 * Rich Text Utilities
 * Helpers for working with Notion's rich text format
 */
export interface RichTextItem {
    type: 'text';
    text: {
        content: string;
        link?: {
            url: string;
        } | null;
    };
    annotations: {
        bold: boolean;
        italic: boolean;
        strikethrough: boolean;
        underline: boolean;
        code: boolean;
        color: string;
    };
    plain_text?: string;
    href?: string | null;
}
export type Color = 'default' | 'gray' | 'brown' | 'orange' | 'yellow' | 'green' | 'blue' | 'purple' | 'pink' | 'red';
/**
 * Create simple rich text
 */
export declare function text(content: string): RichTextItem;
/**
 * Create bold text
 */
export declare function bold(content: string): RichTextItem;
/**
 * Create italic text
 */
export declare function italic(content: string): RichTextItem;
/**
 * Create code text
 */
export declare function code(content: string): RichTextItem;
/**
 * Create link text
 */
export declare function link(content: string, url: string): RichTextItem;
/**
 * Create colored text
 */
export declare function colored(content: string, color: Color): RichTextItem;
/**
 * Apply multiple formatting styles
 */
export declare function formatText(content: string, options?: {
    bold?: boolean;
    italic?: boolean;
    code?: boolean;
    strikethrough?: boolean;
    underline?: boolean;
    color?: Color;
    link?: string;
}): RichTextItem;
/**
 * Extract plain text from rich text array
 * Optimized string accumulation avoids creating intermediate arrays
 * and reduces garbage collection pressure in hot paths.
 */
export declare function extractPlainText(richText: RichTextItem[] | undefined | null): string;
/**
 * Merge multiple rich text items
 */
export declare function mergeRichText(...items: RichTextItem[]): RichTextItem[];
/**
 * Convert string array to rich text
 */
export declare function fromStrings(strings: string[]): RichTextItem[];
/**
 * Check if rich text is empty
 */
export declare function isEmpty(richText: RichTextItem[] | undefined | null): boolean;
/**
 * Truncate rich text to max length
 */
export declare function truncate(richText: RichTextItem[], maxLength: number): RichTextItem[];
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