label: Expected Behavior
      description: Tell us how it should work
    validations:
      required: true
  - type: textarea
    id: current-behavior
    attributes:
      label: Current Behavior (optional)
      description: Explain the difference from current behavior
    validations:
      required: false
  - type: textarea
    id: context
    attributes:
      label: Context
      description: |

      description: |
        Please describe the problem as concisely as possible.
    validations:
      required: true
  - type: textarea
    id: context
    attributes:
      label: Context (optional)
      description: |
        How has this issue affected you? What are you trying to accomplish?
        Providing context helps us come up with a solution that is most useful in the real world
    validations:

/// note | "Заметка"

FastAPI понимает, что значение параметра `q` не является обязательным, потому что имеет значение по умолчанию `= None`.

Аннотация `Optional` в `Optional[str]` не используется FastAPI, но помогает вашему редактору лучше понимать ваш код и обнаруживать ошибки.

///

## Без Pydantic

import com.google.common.annotations.GwtCompatible;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Set;

/**
 * Optional features of classes derived from {@code Set}.
 *
 * @author George van den Driessche
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible

import java.io.Reader;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;

import org.apache.maven.api.model.Model;
import org.apache.maven.api.spi.ModelParser;
import org.apache.maven.api.spi.ModelParserException;
import org.apache.maven.model.io.ModelParseException;

@REM activator launcher script
@REM
@REM Environment:
@REM In order for Activator to work you must have Java available on the classpath
@REM JAVA_HOME - location of a JDK home dir (optional if java on path)
@REM CFG_OPTS  - JVM options (optional)
@REM Configuration:
@REM activatorconfig.txt found in the ACTIVATOR_HOME or ACTIVATOR_HOME/ACTIVATOR_VERSION
@setlocal enabledelayedexpansion

@echo off

set "var1=%~1"
if defined var1 (

	// HelpDrive is help for drive
	HelpDrive = config.HelpKVS{
		config.HelpKV{
			Key:         MaxTimeout,
			Type:        "string",
			Description: "set per call max_timeout for the drive, defaults to 30 seconds",
			Optional:    true,
		},
	}

                    alias("post-integration-test", AFTER + INTEGRATION_TEST));
        }

        @Override
        public Optional<List<String>> orderedPhases() {
            return Optional.of(Arrays.asList(
                    VALIDATE,
                    INITIALIZE,
                    // "generate-sources",
                    SOURCES,

* パラメータが **Pydantic モデル**型で宣言された場合、リクエスト**ボディ**として解釈されます。

/// note | "備考"

FastAPIは、`= None`があるおかげで、`q`がオプショナルだとわかります。

`Optional[str]` の`Optional` はFastAPIでは使用されていません（FastAPIは`str`の部分のみ使用します）。しかし、`Optional[str]` はエディタがコードのエラーを見つけるのを助けてくれます。

///

## Pydanticを使わない方法

import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.List;
import java.util.Set;

/**
 * Optional features of classes derived from {@code List}.
 *
 * @author George van den Driessche
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible