import java.util.Objects;
import java.util.concurrent.ConcurrentMap;
import junit.framework.Assert;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * A test utility that verifies that your methods and constructors throw {@link
 * NullPointerException} or {@link UnsupportedOperationException} whenever null is passed to a

   * element). Note that for an {@link Object#equals}-based multiset, this gives the same result as
   * {@link Collections#frequency} (which would presumably perform more poorly).
   *
   * <p><b>Note:</b> the utility method {@link Iterables#frequency} generalizes this operation; it
   * correctly delegates to this method when dealing with a multiset, but it can also accept any
   * other iterable type.
   *

import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.RandomAccess;
import org.jspecify.annotations.Nullable;

/**
 * Static utility methods pertaining to {@code char} primitives, that are not already found in
 * either {@link Character} or {@link Arrays}.
 *
 * <p>All the operations in this class treat {@code char} values strictly numerically; they are

import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.RandomAccess;
import org.jspecify.annotations.Nullable;

/**
 * Static utility methods pertaining to {@code short} primitives, that are not already found in
 * either {@link Short} or {@link Arrays}.
 *
 * <p>See the Guava User Guide article on <a

import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.RandomAccess;
import org.jspecify.annotations.Nullable;

/**
 * Static utility methods pertaining to {@code short} primitives, that are not already found in
 * either {@link Short} or {@link Arrays}.
 *
 * <p>See the Guava User Guide article on <a

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Objects;
import java.util.regex.Pattern;
import org.jspecify.annotations.Nullable;

/**
 * Static utility methods pertaining to {@code Predicate} instances.
 *
 * <p>All methods return serializable predicates as long as they're given serializable parameters.
 *
 * <p>See the Guava User Guide article on <a

### Другие служебные функции { #other-utility-functions }

Любые другие служебные функции, которые вы вызываете напрямую, можно объявлять обычным `def` или `async def`, и FastAPI не будет влиять на то, как вы их вызываете.

import java.lang.reflect.WildcardType;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.codelibs.core.collection.CollectionsUtil;

/**
 * Utility class for handling generics in Java.
 *
 * @author koichik
 */
public abstract class GenericsUtil {

    /**
     * Do not instantiate.
     */
    protected GenericsUtil() {
    }

    /**

   * element). Note that for an {@link Object#equals}-based multiset, this gives the same result as
   * {@link Collections#frequency} (which would presumably perform more poorly).
   *
   * <p><b>Note:</b> the utility method {@link Iterables#frequency} generalizes this operation; it
   * correctly delegates to this method when dealing with a multiset, but it can also accept any
   * other iterable type.
   *

import org.codelibs.core.exception.NoSuchConstructorRuntimeException;
import org.codelibs.core.exception.NoSuchFieldRuntimeException;
import org.codelibs.core.exception.NoSuchMethodRuntimeException;

/**
 * Utility class for {@link Class} operations.
 *
 * @author higa
 */
public abstract class ClassUtil {

    /**
     * Do not instantiate.
     */
    protected ClassUtil() {
    }