code: func OptionExposedPorts(exposedPorts []types.TransportPort) SandboxOption {
  	return func(sb *sandbox) {
  		if sb.config.generic == nil {
  			sb.config.generic = make(map[string]interface{})
  		}
  		// Defensive copy
  		eps := make([]types.TransportPort, len(exposedPorts))
  		copy(eps, exposedPorts)
  		// Store endpoint label and in generic because driver needs it
  		sb.config.exposedPorts = eps
  		sb.config.generic[netlabel.ExposedPorts] = eps
  	}
  }
docs: // OptionExposedPorts function returns an option setter for the container exposed
  // ports option to be passed to container Create method.