code: func (c *Container) NetNsPath() (string, error) {
  	if c.state == nil {
  		return "", fmt.Errorf("container state is not populated")
  	}
  
  	if c.netns == "" {
  		return fmt.Sprintf("/proc/%d/ns/net", c.state.Pid), nil
  	}
  
  	return c.netns, nil
  }
docs: // NetNsPath returns the path to the network namespace of the container.