await do_stuff()
```

When you create a context manager or an async context manager like above, what it does is that, before entering the `with` block, it will execute the code before the `yield`, and after exiting the `with` block, it will execute the code after the `yield`.

In our code example above, we don't use it directly, but we pass it to FastAPI for it to use it.

            }
            fail("Should not reach this point");
        } catch (IOException e) {
            assertEquals("Resource is null", e.getMessage());
            // No NullPointerException should be thrown when exiting try-with-resources
        }
    }

    /**
     * Test resource loading with missing resource.
     * Demonstrates that null InputStream is handled correctly.
     */
    @Test

  }

  /**
   * Add a shutdown hook to wait for thread completion in the given {@link ExecutorService service}.
   * This is useful if the given service uses daemon threads, and we want to keep the JVM from
   * exiting immediately on shutdown, instead giving these daemon threads a chance to terminate
   * normally.
   *
   * @param service ExecutorService which uses daemon threads

            op.setup(form -> {
                form.initialize();
                form.crudMode = CrudMode.CREATE;
            });
        });
    }

    /**
     * Displays the form for editing an existing related content item.
     *
     * @param form the edit form containing the ID of the item to edit
     * @return HTML response for the edit form
     */
    @Execute
    @Secured({ ROLE })

            op.setup(form -> {
                form.initialize();
                form.crudMode = CrudMode.CREATE;
            });
        });
    }

    /**
     * Displays the form for editing an existing duplicate host configuration.
     *
     * @param form the edit form containing the duplicate host ID
     * @return HTML response for the duplicate host edit form
     */
    @Execute
    @Secured({ ROLE })

                form.crudMode = CrudMode.CREATE;
            });
        }).renderWith(data -> {
            registerLabels(data);
        });
    }

    /**
     * Shows the form for editing an existing elevate word.
     *
     * @param form edit form containing the elevate word ID
     * @return HTML response for the edit elevate word form
     */
    @Execute
    @Secured({ ROLE })

                form.crudMode = CrudMode.CREATE;
            });
        }).renderWith(data -> {
            registerWebConfigItems(data);
        });
    }

    /**
     * Displays the form for editing an existing request header item.
     *
     * @param form the edit form containing the ID of the item to edit
     * @return HTML response for the edit form
     */
    @Execute
    @Secured({ ROLE })

  if [[ "$TFCI_DOCKER_REBUILD_UPLOAD_ENABLE" == 1 ]]; then
    docker push "$TFCI_DOCKER_IMAGE"
  fi
fi

# Keep the existing "tf" container if it's already present.
# The container is not cleaned up automatically! Remove it with:
# docker rm tf
if ! docker container inspect tf >/dev/null 2>&1 ; then
  # Pass all existing TFCI_ variables into the Docker container
  env_file=$(mktemp)
  env | grep ^TFCI_ > "$env_file"

            op.setup(form -> {
                form.initialize();
                form.crudMode = CrudMode.CREATE;
            });
        });
    }

    /**
     * Displays the form for editing an existing path mapping.
     *
     * @param form the edit form containing the path mapping ID and data
     * @return HTML response for the path mapping edit form
     */
    @Execute
    @Secured({ ROLE })

            });
        }).renderWith(data -> {
            registerProtocolSchemeItems(data);
            registerWebConfigItems(data);
        });
    }

    /**
     * Displays the form for editing an existing web authentication configuration.
     *
     * @param form the edit form containing web authentication ID
     * @return HTML response for the web authentication edit form
     */
    @Execute