/// <reference types="node" />
/**
 * Sequential data source.
 */
export default interface DataSource {
    /**
     * Read the defined number of bytes as a buffer.
     */
    read(length: number): Buffer;
    /**
     * Skip the defined number of bytes.
     */
    skip(length: number): void;
    /**
     * Close the underlying data source.
     */
    close(): void;
    /**
     * Get reader's actual cursor position.
     */
    cursor(): number;
}