code: func (c *engineIPC) Dial(addr string) error {
  	client, err := rpc.Dial("unix", addr)
  	if err != nil {
  		return fmt.Errorf("Dial failed: %v", err)
  	}
  	c.client = client
  	return nil
  }
docs: // Dial establishes a connection to the Seesaw Engine.