When you create a **FastAPI** *path operation* you can normally return any data from it: a `dict`, a `list`, a Pydantic model, a database model, etc.

By default, **FastAPI** would automatically convert that return value to JSON using the `jsonable_encoder` explained in [JSON Compatible Encoder](../tutorial/encoder.md){.internal-link target=_blank}.

        final InvertibleCryptographer inver;
        final String cipherAlgorism = fessConfig.getAppCipherAlgorism();
        if ("blowfish".equalsIgnoreCase(cipherAlgorism)) {
            inver = InvertibleCryptographer.createBlowfishCipher(fessConfig.getAppCipherKey());
        } else if ("des".equalsIgnoreCase(cipherAlgorism)) {
            inver = InvertibleCryptographer.createDesCipher(fessConfig.getAppCipherKey());

)

// toString - Safely convert interface to string without causing panic.
func toString(val any) string {
	switch v := val.(type) {
	case string:
		return v
	default:
		return ""
	}
}

// toLowerString - safely convert interface to lower string
func toLowerString(val any) string {
	return strings.ToLower(toString(val))
}

// toInteger _ Safely convert interface to integer without causing panic.

    /**
     * Converts a wildcard query to an appropriate OpenSearch QueryBuilder.
     *
     * @param context The query context containing field and search information
     * @param wildcardQuery The Lucene wildcard query to convert
     * @param boost The boost factor to apply to the query
     * @return The converted OpenSearch QueryBuilder
     */

    public double getAverageReadLatencyMicros() {
        long reads = rdmaReads.get();
        if (reads == 0) {
            return 0.0;
        }
        return totalReadTime.get() / (double) reads / 1000.0; // Convert to microseconds
    }

    /**
     * Calculate average write latency in microseconds
     *
     * @return average write latency
     */
    public double getAverageWriteLatencyMicros() {

import org.codelibs.core.collection.CaseInsensitiveMap;
import org.codelibs.core.convert.ByteConversionUtil;
import org.codelibs.core.convert.DoubleConversionUtil;
import org.codelibs.core.convert.FloatConversionUtil;
import org.codelibs.core.convert.IntegerConversionUtil;
import org.codelibs.core.convert.LongConversionUtil;
import org.codelibs.core.convert.ShortConversionUtil;
import org.codelibs.core.exception.BeanFieldSetAccessibleFailureException;

    throttlePeriodUnit = unit
  }

  fun getThrottlePeriod(unit: TimeUnit): Long = unit.convert(throttlePeriodAmount, throttlePeriodUnit)

  fun setBodyDelay(
    delay: Long,
    unit: TimeUnit,
  ) = apply {
    bodyDelayAmount = delay
    bodyDelayUnit = unit
  }

  fun getBodyDelay(unit: TimeUnit): Long = unit.convert(bodyDelayAmount, bodyDelayUnit)

  fun setHeadersDelay(
    delay: Long,

   * fail to insert an element only by throwing an exception.
   *
   * @throws NullPointerException if the specified element is null
   */
  @CanIgnoreReturnValue
  @Override
  public boolean offer(E e) {
    if (e == null) throw new NullPointerException();
    Monitor monitor = this.monitor;
    if (monitor.enterIf(notFull)) {
      try {
        insert(e);
        return true;

import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotNull;

import java.util.Date;

import org.codelibs.core.beans.Converter;
import org.codelibs.core.convert.StringConversionUtil;
import org.codelibs.core.convert.TimestampConversionUtil;

/**
 * Converter for timestamps.
 *
 * @author higa
 */
public class TimestampConverter implements Converter {

    /**

     *
     * @param parser The XML parser
     * @return Converted array instance
     */
    private Object parseArray(final MXParser parser, final TypeLiteral<?> toType) throws Exception {
        // convert to a collection first then convert that into an array
        final Collection<?> collection = parseCollection(parser, toType);
        final Object array = Array.newInstance(toType.getRawType(), collection.size());

        int i = 0;