It had automatic data validation, data serialization and OpenAPI schema generation based on the same type hints in several places.

Python has support for optional "type hints" (also called "type annotations").

These **"type hints"** or annotations are a special syntax that allow declaring the <abbr title="for example: str, int, float, bool">type</abbr> of a variable.

By declaring types for your variables, editors and tools can give you better support.

        Map<Object, Object> hints = new HashMap<>();
        String childPath = child.getProperties().getOrDefault(CHILD_DIRECTORY_PROPERTY, child.getArtifactId());
        hints.put(CHILD_DIRECTORY, childPath);
        hints.put(MavenModelMerger.CHILD_PATH_ADJUSTMENT, getChildPathAdjustment(child, parent, childPath));
        return merger.merge(child, parent, false, hints);
    }

    /**

  /**
   * The HTTP <a href="https://wicg.github.io/ua-client-hints/#sec-ch-ua">{@code Sec-CH-UA}</a>
   * header field name.
   *
   * @since 30.0
   */
  public static final String SEC_CH_UA = "Sec-CH-UA";
  /**
   * The HTTP <a href="https://wicg.github.io/ua-client-hints/#sec-ch-ua-arch">{@code
   * Sec-CH-UA-Arch}</a> header field name.
   *
   * @since 30.0
   */

# Giới thiệu kiểu dữ liệu Python

Python hỗ trợ tùy chọn "type hints" (còn được gọi là "type annotations").

Những **"type hints"** hay chú thích là một cú pháp đặc biệt cho phép khai báo <abbr title="ví dụ: str, int, float, bool"> kiểu dữ liệu</abbr> của một biến.

Bằng việc khai báo kiểu dữ liệu cho các biến của bạn, các trình soạn thảo và các công cụ có thể hỗ trợ bạn tốt hơn.

# Вступ до типів Python

Python підтримує додаткові "підказки типу" ("type hints") (також звані "анотаціями типу" ("type annotations")).

Ці **"type hints"** є спеціальним синтаксисом, що дозволяє оголошувати <abbr title="наприклад: str, int, float, bool">тип</abbr> змінної.

За допомогою оголошення типів для ваших змінних, редактори та інструменти можуть надати вам кращу підтримку.

import static junit.framework.Assert.fail;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Ordering;
import com.google.common.primitives.Ints;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.LinkedHashSet;
import java.util.List;

// advanced techniques like specifying lock strength and optimizer hints. See the
// [docs] for more depth.
//
//	// add a simple limit clause
//	db.Clauses(clause.Limit{Limit: 1}).Find(&User{})
//	// tell the optimizer to use the `idx_user_name` index
//	db.Clauses(hints.UseIndex("idx_user_name")).Find(&User{})
//	// specify the lock strength to UPDATE

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.SortedLists.KeyAbsentBehavior;
import com.google.common.collect.SortedLists.KeyPresentBehavior;
import com.google.common.primitives.Ints;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import com.google.errorprone.annotations.DoNotCall;
import com.google.errorprone.annotations.concurrent.LazyInit;
import java.io.InvalidObjectException;

    public MavenModelMerger() {
        super(false);
    }

    @Override
    public Model merge(Model target, Model source, boolean sourceDominant, Map<?, ?> hints) {
        return super.merge(target, source, sourceDominant, hints);
    }

    @Override
    protected Model mergeModel(Model target, Model source, boolean sourceDominant, Map<Object, Object> context) {