code: func coerceProxyAddress(proxyAddr string) (*net.IPNet, error) {
  	proxyAddr = strings.TrimSpace(proxyAddr)
  	if !strings.Contains(proxyAddr, "/") {
  		proxyAddr = strings.Join([]string{proxyAddr, "32"}, "/")
  	}
  
  	_, network, err := net.ParseCIDR(proxyAddr)
  	return network, err
  }
docs: // coerceProxyAddress gets network of the presented CIDR notation