export type ColumnAlignment = 'left' | 'right' | 'center';
/**
 * Table column configuration.
 */
export type TableColumn = {
    key: string;
    header: string;
    align?: ColumnAlignment | undefined;
    width?: number | undefined;
    color?: ((value: string) => string) | undefined;
};
/**
 * Format data as an ASCII table with borders.
 *
 * @param data - Array of data objects
 * @param columns - Column configuration
 * @returns Formatted table string
 *
 * @example
 * import { formatTable } from '@socketsecurity/registry/lib/tables'
 * import colors from 'yoctocolors-cjs'
 *
 * const data = [
 *   { name: 'lodash', version: '4.17.21', issues: 0 },
 *   { name: 'react', version: '18.2.0', issues: 2 },
 * ]
 * const columns = [
 *   { key: 'name', header: 'Package' },
 *   { key: 'version', header: 'Version', align: 'center' },
 *   { key: 'issues', header: 'Issues', align: 'right', color: (v) => v === '0' ? colors.green(v) : colors.red(v) },
 * ]
 * console.log(formatTable(data, columns))
 * // Output:
 * // ┌─────────┬─────────┬────────┐
 * // │ Package │ Version │ Issues │
 * // ├─────────┼─────────┼────────┤
 * // │ lodash  │ 4.17.21 │      0 │
 * // │ react   │ 18.2.0  │      2 │
 * // └─────────┴─────────┴────────┘
 */
export declare function formatTable(data: Array<Record<string, unknown>>, columns: TableColumn[]): string;
/**
 * Format data as a simple table without borders.
 * Lighter weight alternative to formatTable().
 *
 * @param data - Array of data objects
 * @param columns - Column configuration
 * @returns Formatted table string
 *
 * @example
 * import { formatSimpleTable } from '@socketsecurity/registry/lib/tables'
 * import colors from 'yoctocolors-cjs'
 *
 * const data = [
 *   { name: 'lodash', version: '4.17.21' },
 *   { name: 'react', version: '18.2.0' },
 * ]
 * const columns = [
 *   { key: 'name', header: 'Package' },
 *   { key: 'version', header: 'Version' },
 * ]
 * console.log(formatSimpleTable(data, columns))
 * // Output:
 * // Package  Version
 * // ───────  ───────
 * // lodash   4.17.21
 * // react    18.2.0
 */
export declare function formatSimpleTable(data: Array<Record<string, unknown>>, columns: TableColumn[]): string;
