Method constructor

lib/callback_model.js:58–62

(connection)

class Channel extends BaseChannel {
  constructor(connection) {
    super(connection);
    this.on('delivery', this.handleDelivery.bind(this));
    this.on('cancel', this.handleCancel.bind(this));
  }

  // This encodes straight-forward RPC: no side-effects and return the
  // fields from the server response. It wraps the callback given it, so