{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py ln[1:15] hl[14] *}

... então o campo `description` não será obrigatório. Porque ele tem um valor padrão de `None`.

### Modelo de Entrada na Documentação

Você pode confirmar que na documentação, o campo `description` não tem um **asterisco vermelho**, não é marcado como obrigatório:

<div class="screenshot">

      <version>1.0.0</version>
      <description>Root element of the profiles.xml file.</description>
      <fields>
        <field>
          <name>profiles</name>
          <version>1.0.0</version>
          <description><![CDATA[
            Configuration of build profiles for adjusting the build
            according to environmental parameters
          ]]></description>
          <association>

  version="2.0">
    
  <description>JSTL 1.1 functions library</description>
  <display-name>JSTL functions</display-name>
  <tlib-version>1.1</tlib-version>
  <short-name>fe</short-name>
  <uri>fess.tags.functions</uri>
  
  <function>
    <description>
      Print HTML tag.
    </description>
    <name>html</name>

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py ln[1:15] hl[14] *}

...then the `description` field will **not be required**. Because it has a default value of `None`.

### Input Model in Docs { #input-model-in-docs }

You can confirm that in the docs, the `description` field doesn't have a **red asterisk**, it's not marked as required:

<div class="screenshot">

          <name>description</name>
          <description>The description of what this expression references, and what it's generally used for.</description>
          <type>String</type>
          <required>true</required>
        </field>
        <field>
          <version>1.0.0</version>
          <name>configuration</name>

  <version>0.0.0.0</version>
</parent>
    ]]></configuration>
    <description> This is the MavenProject instance for the parent of the current POM.
    </description>
  </expression>
  <expression>
    <syntax>project.file</syntax>
    <description> This is the File instance that refers to the location of the current POM on
      disk.
    </description>
  </expression>
  <expression>
    <syntax>project.artifacts</syntax>

// descriptions for all the error responses.
var stsErrCodes = stsErrorCodeMap{
	ErrSTSAccessDenied: {
		Code:           "AccessDenied",
		Description:    "Generating temporary credentials not allowed for this request.",
		HTTPStatusCode: http.StatusForbidden,
	},
	ErrSTSMissingParameter: {
		Code:           "MissingParameter",

			Description:    e.Error(),
			HTTPStatusCode: http.StatusBadRequest,
		}
	case AdminError:
		apiErr = APIError{
			Code:           e.Code,
			Description:    e.Message,
			HTTPStatusCode: e.StatusCode,
		}
	case SRError:
		apiErr = errorCodes.ToAPIErrWithErr(e.Code, e.Cause)
	case decomError:
		apiErr = APIError{
			Code:           "XMinioDecommissionNotAllowed",
			Description:    e.Err,

      <superClass>TrackableBase</superClass>
      <description>
        The {@code &lt;toolchains&gt;} element is the root of the descriptor.
        The following table lists all the possible child elements.
      </description>
      <version>1.0.0+</version>
      <fields>
        <field>
          <name>toolchains</name>
          <version>1.0.0+</version>
          <description>The toolchain instance definition.</description>

-   type: dropdown id: source attributes: label: Source description: Tensorflow
    installed from options: - source - binary validations: required: true

-   type: input id: tfversion attributes: label: Tensorflow Version description:
    placeholder: ex,. tf 2.8 validations: required: true

-   type: dropdown id: Code attributes: label: Custom Code description:
    options: - "Yes" - "No" validations: required: true