/**
 * Template Resolver
 * Resolves placeholders in template strings for sample data generation.
 *
 * Built-in placeholders:
 * - {year}, {month}, {day}, {date}, {timestamp}, {uuid}
 * - {sequence}, {sequence:Nd} (N-digit zero-padded sequence)
 * - {rowIndex}
 *
 * Cross-column references (column must be generated earlier in row):
 * - {column_name} (direct value)
 * - {column_name.lower} (lowercase)
 * - {column_name.upper} (uppercase)
 * - {column_name.first} (first character)
 * - {column_name.last} (last character)
 * - {column_name.pinyin} (Chinese → pinyin without tones)
 * - {column_name.pinyin.first} (Chinese → pinyin initials)
 * - {column_name.N} (first N characters)
 */
export interface ResolveContext {
    /** Values from previously-generated columns (for cross-column references) */
    rowContext: Record<string, unknown>;
    /** Current row index (0-based) */
    rowIndex: number;
    /** Sequence provider for {sequence} */
    sequence: number;
    /** Current date */
    date: Date;
}
/**
 * Resolve all placeholders in template.
 * Unresolved placeholders are preserved as-is.
 */
export declare function resolveTemplate(template: string, rowContext: Record<string, unknown>, sequence: number, rowIndex?: number, date?: Date): string;
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