MaxScanTokenSize = 64 * 1024

	startBufSize = 4096 // Size of initial allocation for buffer.
)

// NewScanner returns a new [Scanner] to read from r.
// The split function defaults to [ScanLines].
func NewScanner(r io.Reader) *Scanner {
	return &Scanner{
		r:            r,
		split:        ScanLines,
		maxTokenSize: MaxScanTokenSize,
	}
}

Então:

```Python
q: str | None = Query(default=None)
```

...torna o parâmetro opcional, com um valor padrão de `None`, o mesmo que:


```Python
q: str | None = None

	}
	// Read header
	switch binary.LittleEndian.Uint16(data[0:2]) {
	case bucketMetadataFormat:
	default:
		return b, fmt.Errorf("loadBucketMetadata: unknown format: %d", binary.LittleEndian.Uint16(data[0:2]))
	}
	switch binary.LittleEndian.Uint16(data[2:4]) {
	case bucketMetadataVersion:
	default:
		return b, fmt.Errorf("loadBucketMetadata: unknown version: %d", binary.LittleEndian.Uint16(data[2:4]))
	}

MINIO_IDENTITY_OPENID_CLAIM_NAME            (string)    JWT canned policy claim name (default: 'policy')
MINIO_IDENTITY_OPENID_SCOPES                (csv)       Comma separated list of OpenID scopes for server, defaults to advertised scopes from discovery document e.g. "email,admin"

        return doExecute(context, request);
    }

    protected MavenExecutionRequest prepareMavenExecutionRequest() throws Exception {
        // explicitly fill in "defaults"?
        DefaultMavenExecutionRequest mavenExecutionRequest = new DefaultMavenExecutionRequest();
        mavenExecutionRequest.setRepositoryCache(new DefaultRepositoryCache());

      * if the new state is "partialDisruption" or "fullDisruption" we call a user defined function that returns a new QPS to use (default 1/10 of the default rate, and the default rate respectively),
      * if the new state is "normal" we resume normal operation (go back to default limiter settings),
      * if all zones in the cluster are in "fullDisruption" state we stop all evictions.

    </ul>
    ]]>
  </description>
  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.model</value>
    </default>
  </defaults>
  <classes>
    <class rootElement="true" xml.tagName="project">
      <name>Model</name>
      <superClass>ModelBase</superClass>
      <description>

      -->
    </dependencies>
  </dependencyManagement>
  <build>
    <!-- Handle where Guava deviates from Maven defaults -->
    <sourceDirectory>src</sourceDirectory>
    <testSourceDirectory>test</testSourceDirectory>
    <resources>
      <resource>
        <directory>../..</directory>
        <includes>

      -->
    </dependencies>
  </dependencyManagement>
  <build>
    <!-- Handle where Guava deviates from Maven defaults -->
    <sourceDirectory>src</sourceDirectory>
    <testSourceDirectory>test</testSourceDirectory>
    <resources>
      <resource>
        <directory>..</directory>
        <includes>

          <type>String</type>
          <description>Parameter expression, to let user override default value with a user property, system property or project property.</description>
        </field>
        <field>
          <name>defaultValue</name>
          <version>2.0.0+</version>
          <type>String</type>
          <description>The default value, as an expression that will be evaluated at injection or run-time.</description>