}
</pre>

<h4 id="General_interfaces">General interfaces</h4>

<p>
In their most general form, an interface element may also be an arbitrary type term
<code>T</code>, or a term of the form <code>~T</code> specifying the underlying type <code>T</code>,
or a union of terms <code>t<sub>1</sub>|t<sub>2</sub>|…|t<sub>n</sub></code>
[<a href="#Go_1.18">Go 1.18</a>].

    /** The key of the configuration. e.g. 10000 */
    String FORM_ADMIN_MAX_INPUT_SIZE = "form.admin.max.input.size";

    /** The key of the configuration. e.g. false */
    String FORM_ADMIN_LABEL_IN_CONFIG_ENABLED = "form.admin.label.in.config.enabled";

    /** The key of the configuration. e.g. __TEMPLATE__ */
    String FORM_ADMIN_DEFAULT_TEMPLATE_NAME = "form.admin.default.template.name";

* Raise an exception when using form data (`Form`, `File`) without having `python-multipart` installed.
    * Up to now the application would run, and raise an exception only when receiving a request with form data, the new behavior, raising early, will prevent from deploying applications with broken dependencies.

  // characters, '-', '_' or '.'. The serialized form of the secret data is a
  // base64 encoded string, representing the arbitrary (possibly non-string)
  // data value here. Described in https://tools.ietf.org/html/rfc4648#section-4
  // +optional
  map<string, bytes> data = 2;

  // stringData allows specifying non-binary secret data in string form.
  // It is provided as a write-only input field for convenience.