Tú declaras la "forma" de los datos mediante clases con atributos.

Cada atributo tiene un tipo.

Luego creas un instance de esa clase con algunos valores y Pydantic validará los valores, los convertirá al tipo apropiado (si ese es el caso) y te dará un objeto con todos los datos.

Y obtienes todo el soporte del editor con el objeto resultante.

        }

        if (file == null) {
            // TODO throw something instead?
            return true;
        }

        Date lastCheckDate;

        if (file.exists()) {
            lastCheckDate = new Date(file.lastModified());
        } else {
            File touchfile = getTouchfile(artifact);
            lastCheckDate = readLastUpdated(touchfile, getRepositoryKey(repository));

    ProjectBuilderConfiguration setUserProperties(Properties userProperties);

    ProjectBuilderConfiguration setExecutionProperties(Properties executionProperties);

    Date getBuildStartTime();

    ProjectBuilderConfiguration setBuildStartTime(Date buildStartTime);

import java.text.SimpleDateFormat;
import java.util.Date;

import org.codehaus.plexus.interpolation.AbstractValueSource;

/**
 *
 */
@Deprecated
public class BuildTimestampValueSource extends AbstractValueSource {

    private final Date startTime;

    private final String format;

    private String formattedDate;

    public BuildTimestampValueSource(Date startTime, String format) {
        super(false);

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

          echo "TF_VERSION=${major_version}.${minor_version}" >> "$GITHUB_OUTPUT"
          # Also get the current date to do cache busting. Assumes one day
          # is an ok range for rebuilds
          echo "DATE=$(date +'%Y-%m-%d')" >> "$GITHUB_OUTPUT"
        id: tf-version
      -
        name: Build and push
        id: docker_build

    private final Map<Object, LocalSnapshotMetadata> snapshots;

    private final Date timestamp;

    LocalSnapshotMetadataGenerator(RepositorySystemSession session, InstallRequest request) {
        timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");

        snapshots = new LinkedHashMap<>();
    }

    @Override

 */
package org.apache.maven.model.interpolation;

import java.util.Date;
import java.util.Map;

import org.codehaus.plexus.interpolation.AbstractValueSource;

/**
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
class BuildTimestampValueSource extends AbstractValueSource {
    private final Date startTime;
    private final Map<String, String> properties;

     */
    @Override
    @PathSensitive(PathSensitivity.NAME_ONLY)
    FileTree getSource() {
        return super.getSource();
    }

    @TaskAction
    def extract() {
        Date start = new Date()

        //parsing all input files into metadata
        //and placing them in the repository object

        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;
    }

    /**