First, of course, you can mix `Path`, `Query` and request body parameter declarations freely and **FastAPI** will know what to do.

And you can also declare body parameters as optional, by setting the default to `None`:

{* ../../docs_src/body_multiple_params/tutorial001_an_py310.py hl[18:20] *}

/// note

     * Returns the plugin context for given key ({@link PluginDescriptor#getPluginLookupKey()} and
     * {@link MavenProject}, never returns {@code null} as if context not present, creates it.
     *
     * <strong>Implementation note:</strong> while this method return type is {@link Map}, the returned map instance
     * implements {@link ConcurrentMap} as well.
     *
     */

    #  Elements of this map are as below:
    #   o key of map: User Definition Name (userDefName)
    #   o url: (NotRequired - Default same as one of main schema)
    #   o schema: (NotRequired - Default treated as no schema setting)
    #   o user: (Required)
    #   o password: password plainly or path to password file (with default password)
    #       e.g. foo or df:dfprop/system-password.txt|foo
    #       (NotRequired - Default '')

        #  This is only for the main schema. Additional schemas are unconcerned.
        #  However ReplaceSchema and Sql2Entity task also uses this.
        #  But you can set ReplaceSchema-original setting in its own dfprop.
        #
        #; objectTypeTargetList = list:{TABLE ; VIEW}

        # o tableExceptList: (NotRequired - Default list:{})
        #  If you want to exclude some tables in generating target,

* Publishing others' private information, such as a physical or email
  address, without their explicit permission
* Other conduct which could reasonably be considered inappropriate in a
  professional setting

## Enforcement Responsibilities

Community leaders are responsible for clarifying and enforcing our standards of
acceptable behavior and will take appropriate and fair corrective action in

### Dependency Injection { #dependency-injection }

FastAPI, son derece kolay kullanımlı ama son derece güçlü bir <dfn title='şöyle de bilinir: "components", "resources", "services", "providers"'><strong>Dependency Injection</strong></dfn> sistemine sahiptir.

* Bağımlılıkların da kendi bağımlılıkları olabilir; böylece bir hiyerarşi veya **bağımlılıklar "grafı"** oluşur.
* Tüm süreç framework tarafından **otomatik olarak yönetilir**.

        NbtAddress nbtAddress = new NbtAddress(mockName, testAddressInt, false, NbtAddress.H_NODE);
        assertFalse(nbtAddress.isGroupAddress(mockContext));
        // No need to verify since we're not setting up the mock context
    }

    @Test
    void testGetNodeType_CheckDataCalled() throws UnknownHostException {
        // Test getNodeType when checkData is called (hostName is unknown)

                // Headings
                .allowElements("h1", "h2", "h3", "h4", "h5", "h6")
                // Text formatting
                .allowElements("p", "br", "hr")
                .allowElements("strong", "em", "b", "i", "u", "s", "del")
                // Lists
                .allowElements("ul", "ol", "li")
                // Code
                .allowElements("code", "pre")
                // Blockquote

  // constructor tests

  public void testDefaults() {
    MapMakerInternalMap<Object, Object, ?, ?> map = makeMap(createMapMaker());

    assertThat(map.keyStrength()).isEqualTo(Strength.STRONG);
    assertThat(map.valueStrength()).isEqualTo(Strength.STRONG);
    assertThat(map.keyEquivalence).isEqualTo(map.keyStrength().defaultEquivalence());
    assertThat(map.valueEquivalence()).isEqualTo(map.valueStrength().defaultEquivalence());

  // constructor tests

  public void testDefaults() {
    MapMakerInternalMap<Object, Object, ?, ?> map = makeMap(createMapMaker());

    assertThat(map.keyStrength()).isEqualTo(Strength.STRONG);
    assertThat(map.valueStrength()).isEqualTo(Strength.STRONG);
    assertThat(map.keyEquivalence).isEqualTo(map.keyStrength().defaultEquivalence());
    assertThat(map.valueEquivalence()).isEqualTo(map.valueStrength().defaultEquivalence());