in salesforce/lib/connection.js [44:51]
constructor(options) {
this.options = options || {};
this.logger = new Logger(this.options.logLevel);
this.loginUrl = this.options.loginUrl || defaults.loginUrl;
this.version = this.options.version || defaults.version;
this.maxRequest = this.options.maxRequest || this.maxRequest || 10;
this.initialize(this.options);
}