}

    private PluginsMetadataGenerator(RepositorySystemSession session, Collection<? extends Metadata> metadatas) {
        this.processedPlugins = new LinkedHashMap<>();
        this.timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");

        /*
         * NOTE: This should be considered a quirk to support interop with Maven's legacy ArtifactDeployer which

        if (o instanceof Calendar) {
            return (Calendar) o;
        }
        final java.util.Date date = DateConversionUtil.toDate(o, pattern);
        if (date != null) {
            final Calendar cal = Calendar.getInstance();
            cal.setTime(date);
            return cal;
        }
        return null;
    }

    /**

    }

    /**
     * Extracts a Date object from the source map using the specified field name.
     * Handles various date formats including Date objects, timestamp numbers, and ISO date strings.
     *
     * @param sourceMap The source map containing the date field.
     * @param name The name of the date field.
     * @return The Date object, or null if the field doesn't contain a valid date.
     */

{* ../../docs_src/header_param_models/tutorial001_an_py310.py hl[9:14,18] *}

**FastAPI** wird die Daten für **jedes Feld** aus den **Headern** des <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Request</abbr> extrahieren und Ihnen das von Ihnen definierte Pydantic-Modell geben.

## Die Dokumentation testen { #check-the-docs }

        } else if (o instanceof String) {
            return toFloat((String) o);
        } else if (o instanceof java.util.Date) {
            if (pattern != null) {
                return Float.valueOf(new SimpleDateFormat(pattern).format(o));
            }
            return Float.valueOf(((java.util.Date) o).getTime());
        } else {
            return toFloat(o.toString());
        }
    }

	}

	region := globalSite.Region()
	date := UTCNow()
	scope := getScope(date, region)
	credential := fmt.Sprintf("%s/%s", accessKeyID, scope)

	// Set URL query.
	query := req.URL.Query()
	query.Set("X-Amz-Algorithm", signV4Algorithm)
	query.Set("X-Amz-Date", date.Format(iso8601Format))
	query.Set("X-Amz-Expires", strconv.FormatInt(expires, 10))

        } else if (o instanceof String) {
            return toByte((String) o);
        } else if (o instanceof java.util.Date) {
            if (pattern != null) {
                return Byte.valueOf(new SimpleDateFormat(pattern).format(o));
            }
            return (byte) ((java.util.Date) o).getTime();
        } else if (o instanceof Boolean) {
            return ((Boolean) o) ? (byte) 1 : (byte) 0;
        } else {

			return true
		}
		if !rule.Expiration.IsDateNull() && rule.Expiration.Date.Before(time.Now().UTC()) {
			return true
		}
		if !rule.Expiration.IsDaysNull() {
			return true
		}
		if rule.Expiration.DeleteMarker.val {
			return true
		}
		if !rule.Transition.IsDateNull() && rule.Transition.Date.Before(time.Now().UTC()) {
			return true
		}

    }

    /**
     * Calculates the document expiration date based on crawling configuration.
     * If the config has a timeToLive value, calculates expiration from current time.
     * Otherwise, returns the stored document expiration time.
     *
     * @param config the crawling configuration containing time-to-live settings
     * @return the document expiration date, or null if no expiration is set
     */

    private final Collection<Artifact> artifacts = new ArrayList<>();

    LocalSnapshotMetadata(Artifact artifact, Date timestamp) {
        super(createMetadata(artifact), (Path) null, timestamp);
    }

    LocalSnapshotMetadata(Metadata metadata, Path path, Date timestamp) {
        super(metadata, path, timestamp);
    }

    private static Metadata createMetadata(Artifact artifact) {