code: function LocalTransport(config) {
    this.id = config && config.id || null;
    this.networkId = this.id || null;
    this['default'] = config && config['default'] || false;
    this.agents = {};
  }
docs: Create a local transport.
  @param {Object} config         Config can contain the following properties:
  - `id: string`. Optional
  @constructor