self.exception = None

    def capture(self, exc):
        self.exception = exc
        return exc


app = FastAPI()
sub_app = FastAPI()
captured_exception = ExceptionCapture()

app.mount(path="/sub", app=sub_app)


@app.exception_handler(RequestValidationError)
@sub_app.exception_handler(RequestValidationError)
async def request_validation_handler(request: Request, exc: RequestValidationError):

But don't worry, you can show it as you wish to your final users in the frontend.

And your database models can use any other names you want.

But for the login *path operation*, we need to use these names to be compatible with the spec (and be able to, for example, use the integrated API documentation system).

Pero no te preocupes, puedes mostrarlo como quieras a tus usuarios finales en el frontend.

Y tus modelos de base de datos pueden usar cualquier otro nombre que desees.

Pero para la *path operation* de inicio de sesión, necesitamos usar estos nombres para ser compatibles con la especificación (y poder, por ejemplo, utilizar el sistema de documentación integrada de la API).

    response = client.get("/openapi.json")
    assert response.status_code == 200
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/items/": {
                "post": {
                    "summary": "Create Item",
                    "operationId": "create_item_items__post",
                    "requestBody": {

the ZIP64 format the 32 bit fields will be 0xffffffff and the 64 bit
fields must be used instead.

[ZIP specification]: https://support.pkware.com/pkzip/appnote
*/
package zip

import (
	"io/fs"
	"path"
	"time"
)

// Compression methods.
const (
	Store   uint16 = 0 // no compression
	Deflate uint16 = 8 // DEFLATE compressed
)

const (
	fileHeaderSignature      = 0x04034b50

	"io"
	"log"
	"os"
	"os/exec"
	"path/filepath"
	"regexp"
	"runtime"
	"slices"
	"strconv"
	"strings"
	"sync"
	"testing"
)

const verbose = false

func goCmd() string {
	var exeSuffix string
	if runtime.GOOS == "windows" {
		exeSuffix = ".exe"
	}
	path := filepath.Join(testenv.GOROOT(nil), "bin", "go"+exeSuffix)
	if _, err := os.Stat(path); err == nil {
		return path
	}
	return "go"

In this case, this `__call__` is what **FastAPI** will use to check for additional parameters and sub-dependencies, and this is what will be called to pass a value to the parameter in your *path operation function* later.

## Parameterize the instance { #parameterize-the-instance }

And now, we can use `__init__` to declare the parameters of the instance that we can use to "parameterize" the dependency:

         * if (tokenizerFactory == null) { final String path = System.getProperty(SuggestConstants.USER_DICT_PATH);
         * final String encoding = System.getProperty(SuggestConstants.USER_DICT_ENCODING); final Map<String, String>
         * args = new HashMap<>(); args.put("mode", "normal"); args.put("discardPunctuation", "false"); if
         * (Strings.isNullOrEmpty(path)) { args.put("userDictionary", path); } if (Strings.isNullOrEmpty(encoding)) {

        .header("Upgrade", "websocket")
        .header("Host", "square.com")
        .header("TE", "gzip")
        .build()
    val expected =
      headerEntries(
        ":method",
        "GET",
        ":path",
        "/",
        ":authority",
        "square.com",
        ":scheme",
        "http",
      )
    assertThat(http2HeadersList(request)).isEqualTo(expected)
  }

    public InvalidProjectModelException(String projectId, String message, File pomLocation) {
        super(projectId, message, pomLocation);
    }

    /**
     * @param projectId
     * @param pomLocation      absolute path of the pom file
     * @param message
     * @param validationResult
     * @deprecated use {@link File} constructor for pomLocation
     */
    @Deprecated
    public InvalidProjectModelException(