For example:

{* ../../docs_src/conditional_openapi/tutorial001_py310.py hl[6,11] *}

Here we declare the setting `openapi_url` with the same default of `"/openapi.json"`.

And then we use it when creating the `FastAPI` app.

Then you could disable OpenAPI (including the UI docs) by setting the environment variable `OPENAPI_URL` to the empty string, like:

<div class="termy">

```console
$ OPENAPI_URL= uvicorn main:app

For more commands and examples, including local development,
see [this guide](./platforms/documentation/docs/README.md).

### Creating commits and writing commit messages

The commit messages that accompany your code changes are an important piece of documentation. Please follow these guidelines when creating commits:

* [Write good commit messages.](https://cbea.ms/git-commit/#seven-rules)

 * it delegates to other components that potentially encounter problems. Then, the problem reporter can focus on
 * providing a simple error message, leaving the donkey work of creating a nice model problem to this component.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ModelProblemCollector {

    /**

     * reference. If the cached data is mutable, i.e. could be modified after being put into the cache, the caller is
     * responsible for creating a copy of the original data and store the copy in the cache.
     *
     * @param request The repository request from which this cache was retrieved, must not be {@code null}.

## An app with callbacks { #an-app-with-callbacks }

Let's see all this with an example.

Imagine you develop an app that allows creating invoices.

These invoices will have an `id`, `title` (optional), `customer`, and `total`.

The user of your API (an external developer) will create an invoice in your API with a POST request.

### Disable the automatic docs { #disable-the-automatic-docs }

The first step is to disable the automatic docs, as by default, those use the default CDN.

To disable them, set their URLs to `None` when creating your `FastAPI` app:

{* ../../docs_src/custom_docs_ui/tutorial001_py310.py hl[8] *}

### Include the custom docs { #include-the-custom-docs }

Now you can create the *path operations* for the custom docs.

    /**
     * The timestamp when these related queries were created.
     */
    @ValidateTypeFailure
    public Long createdTime;

    /**
     * Initializes the form with default values for creating new related queries.
     */
    public void initialize() {
        crudMode = CrudMode.CREATE;
        createdBy = ComponentUtil.getSystemHelper().getUsername();

    /**
     * The timestamp when this request header was created.
     */
    @ValidateTypeFailure
    public Long createdTime;

    /**
     * Initializes the form with default values for creating a new request header.
     */
    public void initialize() {
        crudMode = CrudMode.CREATE;
        createdBy = ComponentUtil.getSystemHelper().getUsername();

 */
package org.apache.maven.lifecycle;

import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.project.MavenProject;

/**
 * <p>
 * A MojoExecutionConfigurator is responsible for creating the configuration for Mojo based on configuration for a Mojo
 * in the MavenProject and the default configuration for the Mojo from the containing plugin's plugin.xml descriptor.
 * </p>

  private static final Comparator<Double> VALUE_COMPARATOR =
      Ordering.<Double>natural().reverse().nullsFirst();

  /**
   * Test that creating one TreeMultimap from another does not copy the comparators from the source
   * TreeMultimap.
   */
  public void testCreateFromTreeMultimap() {