@app.get("/items/invalidnone", response_model=Item)
def get_invalid_none():
    return None


@app.get("/items/validnone", response_model=Union[Item, None])
def get_valid_none(send_none: bool = False):
    if send_none:
        return None
    else:
        return {"name": "invalid", "price": 3.2}


@app.get("/items/innerinvalid", response_model=Item)
def get_innerinvalid():

	EnvKMSAutoEncryption = "MINIO_KMS_AUTO_ENCRYPTION"
)

// LookupAutoEncryption returns true if and only if
// the MINIO_KMS_AUTO_ENCRYPTION env. variable is
// set to "on".
func LookupAutoEncryption() bool {
	auto, _ := config.ParseBool(env.Get(EnvKMSAutoEncryption, config.EnableOff))
	return auto

Also notice that **FastAPI** is smart enough to notice that the path parameter `item_id` is a path parameter and `q` is not, so, it's a query parameter.

///

## Query parameter type conversion

You can also declare `bool` types, and they will be converted:

//// tab | Python 3.10+

```Python hl_lines="7"
{!> ../../docs_src/query_params/tutorial003_py310.py!}
```

////

//// tab | Python 3.8+

	"encoding/base64"
	"fmt"
	"net/http"
	"strings"
	"testing"

	minio "github.com/minio/minio-go/v7"
)

func TestParsePostPolicyForm(t *testing.T) {
	testCases := []struct {
		policy  string
		success bool
	}{
		// missing expiration, will fail.
		{

	os.WriteFile(filepath.Join(tmp, "token"), []byte(saToken), 0o644)
	cases := []struct {
		name               string
		expectedFailure    bool
		k8sServiceProtocol string
		k8sServiceHost     string
		k8sServicePort     string
		kubeCAFilepath     string
		skipTLSVerify      bool
	}{
		{
			name:            "k8s service host not set",
			expectedFailure: true,
		},
		{
			name:            "k8s service port not set",

	input := filepath.Join("testdata", file+".s")
	architecture, ctxt := setArch(goarch)
	architecture.Init(ctxt)
	lexer := lex.NewLexer(input)
	parser := NewParser(ctxt, architecture, lexer)
	pList := new(obj.Plist)
	var ok bool
	testOut = new(strings.Builder) // The assembler writes test output to this buffer.
	ctxt.Bso = bufio.NewWriter(os.Stdout)
	ctxt.IsAsm = true
	defer ctxt.Bso.Flush()
	failed := false

	}
	// Try Raw, return error
	return x509.ParsePKCS1PrivateKey(priv)
}

func fatalErr(err error) {
	if err == nil {
		return
	}
	log.Fatalln(err)
}

func fatalIf(b bool, msg string, v ...interface{}) {
	if !b {
		return
	}
	log.Fatalf(msg, v...)

import org.gradle.api.file.ConfigurableFileCollection;
import org.gradle.api.file.DirectoryProperty;

/**
 * Configuration for user manual documentation
 */
public abstract class UserManual {
    /**
     * The root of the user manual documentation.  This is the source of the adoc files.
     */
    public abstract DirectoryProperty getRoot();

    /**
     * Source of snippets that can be inserted into the user manual
     */

		size = 0
	}
	tw.curr = &regFileWriter{tw.w, size}
	tw.pad = blockPadding(size)
	return nil
}

// AddFS adds the files from fs.FS to the archive.
// It walks the directory tree starting at the root of the filesystem
// adding each file to the tar archive while maintaining the directory structure.
func (tw *Writer) AddFS(fsys fs.FS) error {
	return fs.WalkDir(fsys, ".", func(name string, d fs.DirEntry, err error) error {

* ⬆ Update pre-commit requirement from <4.0.0,>=2.17.0 to >=2.17.0,<5.0.0. PR [#12749](https://github.com/fastapi/fastapi/pull/12749) by [@dependabot[bot]](https://github.com/apps/dependabot).
* ⬆ Bump typer from 0.12.3 to 0.12.5. PR [#12748](https://github.com/fastapi/fastapi/pull/12748) by [@dependabot[bot]](https://github.com/apps/dependabot).