///

## Cambiando el valor por defecto

In many cases your application could need some external settings or configurations, for example secret keys, database credentials, credentials for email services, etc.

Most of these settings are variable (can change), like database URLs. And many could be sensitive, like secrets.

For this reason it's common to provide them in environment variables that are read by the application.

/// tip

In fact, in some cases, it will even have **two JSON Schemas** in OpenAPI for the same Pydantic model, for input and output, depending on if they have **default values**.

Let's see how that works and how to change it if you need to do that.

## Pydantic Models for Input and Output { #pydantic-models-for-input-and-output }

Let's say you have a Pydantic model with default values, like this one:

## Creating a hotfix branch

Customers in MinIO are allowed LTS on any release they choose to standardize. Production setups seldom change and require maintenance. Hotfix branches are such maintenance branches that allow customers to operate a production cluster without drastic changes to their deployment.

## Backporting a fix

  echo "Error: Generated wheel is too big! Limit is $TFCI_WHL_SIZE_LIMIT"
  echo '(search for TFCI_WHL_SIZE_LIMIT to change it)'
  ls -sh *.whl
  exit 2
fi

# Quick install checks
venv_dir=$(mktemp -d)
if [[ $(uname -s) != MSYS_NT* ]]; then
  "python${TFCI_PYTHON_VERSION}" -m venv "$venv_dir"
  python="$venv_dir/bin/python3"

            }
        });

        factory.destroyObject(pooledObject);
        assertEquals(1, callOrder.size());
        assertEquals("listener1", callOrder.get(0));

        // Change listener
        factory.setOnDestroyListener(new OnDestroyListener<TestComponent>() {
            @Override
            public void onDestroy(PooledObject<TestComponent> p) {
                callOrder.add("listener2");

When the **container** is started and running (started from a **container image**) it could create or change files, environment variables, etc. Those changes will exist only in that container, but would not persist in the underlying container image (would not be saved to disk).

            }
            throw new SuggestIndexException(msg, e);
        }
    }

    /**
     * Adds a bad word.
     * @param badWord The bad word to add.
     * @param apply Whether to apply the change immediately.
     * @return The SuggestDeleteResponse.
     */
    public SuggestDeleteResponse addBadWord(final String badWord, final boolean apply) {
        final String normalized = normalizer.normalize(badWord, "");

///

## Alterando o padrão

  The licenses for most software and other practical works are designed
to take away your freedom to share and change the works.  By contrast,
our General Public Licenses are intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users.

  When we speak of free software, we are referring to freedom, not