/**
 * Column class
 */
export declare class Column {
    /**
     * count of column data entries
     */
    length: number;
    /**
     * column key name
     */
    private key;
    /**
     * column data container
     */
    private data;
    constructor(key: string, data: string[]);
    /**
     * Get column name
     * @returns column name
     */
    getKey(): string;
    /**
     * Get column data
     * @returns column data
     */
    getData(): string[];
    /**
     * Get column data at given index
     * @param idx data index
     * @returns data at given index
     */
    getDataByIndex(idx: number): string | null;
    /**
     * Check if column has a given data index
     * @param idx data index
     * @returns boolean result
     */
    private hasDataIndex;
}