* more simply:
 *
 * {@snippet :
 * CacheLoader<Key, Graph> loader = CacheLoader.from(key -> createExpensiveGraph(key));
 * }
 *
 * @author Charles Fry
 * @since 10.0
 */
@GwtCompatible
public abstract class CacheLoader<K, V> {
  /** Constructor for use by subclasses. */
  protected CacheLoader() {}

  /**
   * Computes or retrieves the value corresponding to {@code key}.
   *

     * might not run some of its listeners. The likely result is that the app will hang. (And of
     * course stack overflows are bad news in general. For example, we may have overflowed in the
     * middle of defining a class. If so, that class will never be loadable in this process.) The
     * best we can do (since logging may overflow the stack) is to let the error propagate. Because

import jakarta.validation.constraints.Size;

/**
 * Form class for creating mapping dictionary entries.
 * Mapping dictionaries allow administrators to define synonym mappings
 * where multiple input terms can be mapped to a single output term for search normalization.
 *
 */
public class CreateForm {

    /**
     * Creates a new CreateForm instance.
     */
    public CreateForm() {

import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Size;

/**
 * Form class for creating new synonym dictionary entries.
 * This form handles the creation of synonym mappings that expand
 * search queries to include related terms.
 *
 */
public class CreateForm {

    /**
     * Creates a new CreateForm instance.
     */
    public CreateForm() {
    }

 */

package jcifs.dcerpc.ndr;

/**
 * Represents an NDR small integer (1 byte unsigned) for DCE/RPC communication.
 * This class encapsulates a single byte value (0-255) in NDR format.
 */
public class NdrSmall extends NdrObject {

    /**
     * The small integer value (0-255)
     */
    public int value;

    /**
     * Constructs an NdrSmall with the specified value

 */

package jcifs.smb1.dcerpc.msrpc;

import jcifs.smb1.dcerpc.rpc;

/**
 * MS-RPC SAMR open domain operation.
 *
 * This class implements the SAMR OpenDomain operation for obtaining
 * a handle to a specific domain in the Security Account Manager.
 */
public class MsrpcSamrOpenDomain extends samr.SamrOpenDomain {

    /**
     * Creates a new request to open a domain handle.
     *

 */
package okhttp3.recipes;

import java.io.IOException;
import okhttp3.Credentials;
import okhttp3.Interceptor;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public final class PreemptiveAuth {
  private final OkHttpClient client;

  public PreemptiveAuth() {
    client = new OkHttpClient.Builder()
        .addInterceptor(

import org.apache.maven.api.cli.Options;
import org.apache.maven.api.cli.mvnsh.ShellOptions;
import org.apache.maven.cling.invoker.CommonsCliOptions;

/**
 * Implementation of {@link ShellOptions} (base + shell).
 */
public class CommonsCliShellOptions extends CommonsCliOptions implements ShellOptions {
    public static CommonsCliShellOptions parse(String[] args) throws ParseException {
        CLIManager cliManager = new CLIManager();

Наприклад, вона не приймає об'єкти типу `datetime`, оскільки вони не сумісні з JSON.

Отже, об'єкт типу `datetime` потрібно перетворити в рядок `str`, який містить дані в <a href="https://en.wikipedia.org/wiki/ISO_8601" class="external-link" target="_blank">ISO форматі</a>.

Тим самим способом ця база даних не прийматиме об'єкт типу Pydantic model (об'єкт з атрибутами), а лише `dict`.

Ви можете використовувати `jsonable_encoder` для цього.

    return "fakehashed" + password


oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")


class User(BaseModel):
    username: str
    email: Union[str, None] = None
    full_name: Union[str, None] = None
    disabled: Union[bool, None] = None


class UserInDB(User):
    hashed_password: str


def get_user(db, username: str):
    if username in db: