export = KnexLogger;
/**
 * @typedef {object} LoggerOptions
 * @prop {Knex} pool
 * @prop {number} logDurationsAboveMs - Queries lasting longer than the specified
 *   duration are logged; 0 means log all queries
 * @prop {cutDurationsOverMs} - Queries lasting longer than this value are
 *   logged and not not monitored any more
 * @prop {'info'|'warn'|'error'} [logLevel] - Log method to be used (defaults
 *   to warn)
 *   in tests)
 */
/**
 * @typedef {object} KnexLoggerConfig
 * @prop {Knex} pool
 * @prop {object} [log] - console or another logger (defaults to console)
 * @prop {LoggerOptions} options
 * @prop {Function} [setTimeout] - method for setTimeout (overridden in tests)
 * @prop {Function} [getTimeMs] - method returning unix time in ms (overridden
 *   in tests)
 */
declare class KnexLogger {
    /**
     * @prop {object[]}
     */
    static "__#2@#queries": {};
    /**
     * @prop {number}
     */
    static "__#2@#timeoutDelayMs": number;
    /**
     * @param {KnexLoggerConfig} config
     */
    constructor(config: KnexLoggerConfig);
    /**
     * @returns {KnexLogger}
     */
    start(): KnexLogger;
    cleanup(): void;
    #private;
}
declare namespace KnexLogger {
    export { LoggerOptions, KnexLoggerConfig };
}
type LoggerOptions = {
    pool: Knex;
    /**
     * - Queries lasting longer than the specified
     * duration are logged; 0 means log all queries
     */
    logDurationsAboveMs: number;
    /**
     * - Queries lasting longer than this value are
     * logged and not not monitored any more
     */
    "": cutDurationsOverMs;
    /**
     * - Log method to be used (defaults
     * to warn)
     * in tests)
     */
    logLevel?: "error" | "info" | "warn" | undefined;
};
type KnexLoggerConfig = {
    pool: Knex;
    /**
     * - console or another logger (defaults to console)
     */
    log?: object | undefined;
    options: LoggerOptions;
    /**
     * - method for setTimeout (overridden in tests)
     */
    setTimeout?: Function | undefined;
    /**
     * - method returning unix time in ms (overridden
     * in tests)
     */
    getTimeMs?: Function | undefined;
};