{* ../../docs_src/response_directly/tutorial002_py310.py hl[1,18] *}

## Cómo funciona un Response Model { #how-a-response-model-works }

Cuando declaras un [Response Model - Return Type](../tutorial/response-model.md) en una *path operation*, **FastAPI** lo usará para serializar los datos a JSON, usando Pydantic.

{* ../../docs_src/response_model/tutorial001_01_py310.py hl[16,21] *}

Також зверніть увагу, що **FastAPI** достатньо розумний, щоб визначити, що параметр шляху `item_id` є параметром шляху, а `q` — ні, отже, це параметр query.

///

## Перетворення типу параметра query { #query-parameter-type-conversion }

Ви також можете оголошувати параметри типу `bool`, і вони будуть автоматично конвертовані:

{* ../../docs_src/query_params/tutorial003_py310.py hl[7] *}

У цьому випадку, якщо ви перейдете за:

```

			if res.StatusCode != expectStatus {
				t.Errorf("Expected status %d, got %d", expectStatus, res.StatusCode)
			}

			if contentType != "" {
				if ct := res.Header.Get("Content-Type"); ct != contentType {
					t.Errorf("Expected Content-Type %q, got %q", contentType, ct)
				}
			}

			if res.StatusCode < 400 {
				if string(respBody) != lambdaBody {
					t.Errorf("Expected body %q, got %q", lambdaBody, string(respBody))

	    uint16_t time_hi_and_version;
	    uint8_t clock_seq_hi_and_reserved;
	    uint8_t clock_seq_low;
	    uint8_t node[6];
	} uuid_t;

	/* win32 stuff */

	typedef struct {
		uint32_t type;
		uuid_t uuid;
	} policy_handle;

	/*
	 * typedef struct _UNICODE_STRING
	 *     USHORT Length;
	 *     USHORT MaximumLength;
	 *     [size_is(MaximumLength / 2), length_is((Length) / 2) ] USHORT *  Buffer;

	    uint16_t time_hi_and_version;
	    uint8_t clock_seq_hi_and_reserved;
	    uint8_t clock_seq_low;
	    uint8_t node[6];
	} uuid_t;

	/* win32 stuff */

	typedef struct {
		uint32_t type;
		uuid_t uuid;
	} policy_handle;

	/*
	 * typedef struct _UNICODE_STRING
	 *     USHORT Length;
	 *     USHORT MaximumLength;
	 *     [size_is(MaximumLength / 2), length_is((Length) / 2) ] USHORT *  Buffer;

        enablePullRequestFeature()
    }

    requirements {
        requiresOs(os)
        requiresArch(os, arch)
    }

    failureConditions {
        if (this@applyDefaultSettings.type != BuildTypeSettings.Type.COMPOSITE) {
            executionTimeoutMin = timeout
        }
        testFailure = true
        supportTestRetry = true
        add {
            failOnText {

/// tip

This is just standard Python, it's called a "type alias", it's actually not specific to **FastAPI**.

But because **FastAPI** is based on the Python standards, including `Annotated`, you can use this trick in your code. 😎

///

  <Description>Full Text Search for Your Documents.</Description>
  <Tags>Full Text Search</Tags>
  <Contact>******@****.***</Contact>
  <SearchForm>http://localhost:8080/fess/</SearchForm>
  <Url type="text/html" template="http://localhost:8080/fess/search?q={searchTerms}"/>
  <InputEncoding>UTF-8</InputEncoding>
  <OutputEncoding>UTF-8</OutputEncoding>

}

func TestJoinWithSameColumnName(t *testing.T) {
	user := GetUser("TestJoinWithSameColumnName", Config{
		Languages: 1,
		Pets:      1,
	})
	DB.Create(user)
	type UserSpeak struct {
		UserID       uint
		LanguageCode string
	}
	type Result struct {
		User
		UserSpeak
		Language
		Pet
	}

	results := make([]Result, 0, 1)

        assertEquals(mockSids, msrpcGetMembersInAlias.sids, "sids should be set correctly");
        assertEquals(0, msrpcGetMembersInAlias.getPtype(), "ptype should be initialized to 0");
        assertEquals(DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG, msrpcGetMembersInAlias.getFlags(),
                "flags should be set to DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG");
    }