/**
 * Build logger stream configuration by type, for 'file' and 'rotate'
 * additionally save a log for error levels.
 * @private
 * @param {string} type - Supported types are 'file', 'rotate' and 'stream'
 * if it's not specified or is false the stream will disabled
 * @param {object} options - the parameters for define a stream
 * @param {string} [options.name] - An optional instance name of alert `emailStream`
 * @param {(boolean|object|string[])} [options.alerts] - if `alerts` is `true` and `alertsEmails`...
 * @param {object} options.config - server configuration with logger options, see {@link Logger#setup}
 * @returns {object} logger streams configuration
 */
function myFunction(type, options = {}) {


}