/**
 * Grid property loader
 */
export declare abstract class GridProperties {
    private readonly extraConfig;
    constructor(config: any);
    /**
     * Get a property by key
     *
     * @param key
     *            key
     * @param required
     *            true if required
     * @return value
     */
    getProperty(required: boolean | undefined, key: string): string | undefined;
    /**
     * Get an integer property by key
     *
     * @param required
     *            true if required
     * @param key
     *            key
     * @return integer value
     */
    getIntegerProperty(required?: boolean, ...key: string[]): number | undefined;
    /**
     * Get a float by key
     *
     * @param required
     *            true if required
     * @param key
     *            key
     * @return float value
     */
    getFloatProperty(required?: boolean, ...key: string[]): number | undefined;
    /**
     * Get a double by key
     *
     * @param required
     *            true if required
     * @param key
     *            key
     * @return double value
     */
    getDoubleProperty(required?: boolean, ...key: string[]): number | undefined;
    /**
     * Get a boolean by key
     *
     * @param required
     *            true if required
     * @param key
     *            key
     * @return boolean value
     */
    getBooleanProperty(required?: boolean, ...key: string[]): boolean | undefined;
    /**
     * Build a combined property separated by
     * {@link PropertyConstants#PROPERTY_DIVIDER}
     *
     * @param properties
     *            property parts
     *
     * @return combined property
     */
    buildProperty(properties: string[]): string;
}
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