code: func (cli *Client) NetworksPrune(ctx context.Context, pruneFilters filters.Args) (types.NetworksPruneReport, error) {
  	var report types.NetworksPruneReport
  
  	if err := cli.NewVersionError("1.25", "network prune"); err != nil {
  		return report, err
  	}
  
  	query, err := getFiltersQuery(pruneFilters)
  	if err != nil {
  		return report, err
  	}
  
  	serverResp, err := cli.post(ctx, "/networks/prune", query, nil, nil)
  	defer ensureReaderClosed(serverResp)
  	if err != nil {
  		return report, err
  	}
  
  	if err := json.NewDecoder(serverResp.body).Decode(&report); err != nil {
  		return report, fmt.Errorf("Error retrieving network prune report: %v", err)
  	}
  
  	return report, nil
  }
docs: // NetworksPrune requests the daemon to delete unused networks