}

  private static Type[] toArray(Collection<Type> types) {
    return types.toArray(new Type[0]);
  }

  private static Iterable<Type> filterUpperBounds(Iterable<Type> bounds) {
    return Iterables.filter(bounds, Predicates.not(Predicates.<Type>equalTo(Object.class)));
  }

  private static void disallowPrimitiveType(Type[] types, String usedAs) {
    for (Type type : types) {
      if (type instanceof Class) {

  }

  private static Type[] toArray(Collection<Type> types) {
    return types.toArray(new Type[0]);
  }

  private static Iterable<Type> filterUpperBounds(Iterable<Type> bounds) {
    return Iterables.filter(bounds, Predicates.not(Predicates.<Type>equalTo(Object.class)));
  }

  private static void disallowPrimitiveType(Type[] types, String usedAs) {
    for (Type type : types) {
      if (type instanceof Class) {

توی همون نقطه، سعی می‌کنی تکمیل خودکار رو با `Ctrl+Space` فعال کنی و اینو می‌بینی:

<img src="/img/python-types/image02.png">

با این، می‌تونی اسکرول کنی، گزینه‌ها رو ببینی، تا وقتی که اون چیزی که "به نظرت آشنا میاد" رو پیدا کنی:

<img src="/img/python-types/image03.png">

## انگیزه بیشتر

این تابع رو چک کن، الان نوع‌نما داره:

{* ../../docs_src/python_types/tutorial003.py hl[1] *}

<img src="/img/python-types/image04.png">

Now you know that you have to fix it, convert `age` to a string with `str(age)`:

{* ../../docs_src/python_types/tutorial004.py hl[2] *}

## Declaring types { #declaring-types }

You just saw the main place to declare type hints. As function parameters.

This is also the main place you would use them with **FastAPI**.

### Simple types { #simple-types }

Up to now, you have been using common data types, like:

* `int`
* `float`
* `str`
* `bool`

But you can also use more complex data types.

And you will still have the same features as seen up to now:

* Great editor support.
* Data conversion from incoming requests.
* Data conversion for response data.
* Data validation.
* Automatic annotation and documentation.

Klaus Post <******@****.***> 1756435188 +0200

    TypeToken<Object>.TypeSet types = new TypeToken<Object>() {}.getTypes();
    assertThat(types).contains(TypeToken.of(Object.class));
    assertThat(types.rawTypes()).contains(Object.class);
    assertThat(types.interfaces()).isEmpty();
    assertThat(types.interfaces().rawTypes()).isEmpty();
    assertThat(types.classes()).contains(TypeToken.of(Object.class));
    assertThat(types.classes().rawTypes()).contains(Object.class);
  }

        assertEquals("document", types[0]);
        assertEquals("text", types[1]);
    }

    public void test_getTypes_empty() {
        String[] types = fileTypeHelper.getTypes();
        assertNotNull(types);
        assertEquals(0, types.length);
    }

    public void test_add_overwrite() {
        fileTypeHelper.add("application/pdf", "pdf");

     */
    <T> T newInstance(Object... args);

    /**
     * Returns the {@link ConstructorDesc} for the given parameter types.
     *
     * @param paramTypes
     *            The array of parameter types for the constructor
     * @return The {@link ConstructorDesc} for the given parameter types
     */
    ConstructorDesc getConstructorDesc(Class<?>... paramTypes);

    /**

  @CanIgnoreReturnValue
  Type[] resolveTypesInPlace(Type[] types) {
    for (int i = 0; i < types.length; i++) {
      types[i] = resolveType(types[i]);
    }
    return types;
  }

  private Type[] resolveTypes(Type[] types) {
    Type[] result = new Type[types.length];
    for (int i = 0; i < types.length; i++) {
      result[i] = resolveType(types[i]);
    }
    return result;
  }