code: public final ColumnSpec updateColumnSpec(ColumnSpec columnSpec) {
  
      UpdateColumnSpecRequest request =
          UpdateColumnSpecRequest.newBuilder().setColumnSpec(columnSpec).build();
      return updateColumnSpec(request);
    }
docs: Updates a column spec.
  
  <p>Sample code:
  
  <pre><code>
  try (AutoMlClient autoMlClient = AutoMlClient.create()) {
  ColumnSpec columnSpec = ColumnSpec.newBuilder().build();
  ColumnSpec response = autoMlClient.updateColumnSpec(columnSpec);
  }
  </code></pre>
  
  @param columnSpec The column spec which replaces the resource on the server.
  @throws com.google.api.gax.rpc.ApiException if the remote call fails