code: function onceReady(error, methods) {
        this.debug(error ? 'No methods (%d) found, unable to connect to %s.' : 'onceReady: Found %d methods on %s.', ( methods ? methods.length : 0 ), this.get('url'));
  
        // Set Methods.
        this.set('methods', this.common.trim(methods));
  
        if (error) {
          this.emit('error', error, this);
        }
  
        this.emit('connected', error, this);
  
        // @chainable
        return this;
  
      }
docs: Callback for Connection Verification.
  
  @param error
  @param methods
  @returns {*}