comment: Annotated[
        str | None,
        Doc(
            """
            Optional comment line(s) (`:` prefix).
            """
        ),
    ] = None,
) -> bytes:
    """Build SSE wire-format bytes from **pre-serialized** data.

    The result always ends with `\n\n` (the event terminator).
    """
    lines: list[str] = []

    if comment is not None:

from fastapi import FastAPI, File, UploadFile
from fastapi.responses import HTMLResponse

app = FastAPI()


@app.post("/files/")
async def create_files(files: list[bytes] = File()):
    return {"file_sizes": [len(file) for file in files]}


@app.post("/uploadfiles/")
async def create_upload_files(files: list[UploadFile]):
    return {"filenames": [file.filename for file in files]}


@app.get("/")
async def main():

import gzip
from collections.abc import Callable

from fastapi import Body, FastAPI, Request, Response
from fastapi.routing import APIRoute


class GzipRequest(Request):
    async def body(self) -> bytes:
        if not hasattr(self, "_body"):
            body = await super().body()
            if "gzip" in self.headers.getlist("Content-Encoding"):
                body = gzip.decompress(body)
            self._body = body

        byte[] dst = new byte[15]; // Increased buffer size to accommodate offset + 8 bytes
        int offset = 3; // start in the middle to ensure no tail is overwritten
        int bytesWritten = cmd.writeParametersWireFormat(dst, offset);
        assertEquals(8, bytesWritten, "writeParametersWireFormat should write 8 bytes");

        byte[] expected = expectedParameters(fid, securityInformation);

		// Short Content-Md5 header.
		{mustNewSignedShortMD5Request(http.MethodPut, "http://127.0.0.1:9000/", 5, bytes.NewReader([]byte("hello")), t), ErrInvalidDigest},
		// When request is properly signed, but has bad Content-MD5 header.
		{mustNewSignedBadMD5Request(http.MethodPut, "http://127.0.0.1:9000/", 5, bytes.NewReader([]byte("hello")), t), ErrBadDigest},

		// Id's are limited to 512 bytes in V7+, so we need to do this.
		var keyHash string
		{
			key := eventData.S3.Bucket.Name + "/" + objectName
			if target.client.isAtleastV7() {
				hh, _ := highwayhash.New(magicHighwayHash256Key) // New will never return error since key is 256 bit
				hh.Write([]byte(key))
				hashBytes := hh.Sum(nil)

from typing import Any

import orjson
from fastapi import FastAPI, Response

app = FastAPI()


class CustomORJSONResponse(Response):
    media_type = "application/json"

    def render(self, content: Any) -> bytes:
        assert orjson is not None, "orjson must be installed"
        return orjson.dumps(content, option=orjson.OPT_INDENT_2)


@app.get("/", response_class=CustomORJSONResponse)
async def main():

from collections.abc import Callable
from typing import Annotated

from fastapi import Body, FastAPI, Request, Response
from fastapi.routing import APIRoute


class GzipRequest(Request):
    async def body(self) -> bytes:
        if not hasattr(self, "_body"):
            body = await super().body()
            if "gzip" in self.headers.getlist("Content-Encoding"):
                body = gzip.decompress(body)
            self._body = body

In diesem Beispiel haben wir kein Pydantic-Modell deklariert. Tatsächlich wird der Requestbody nicht einmal als JSON <dfn title="von einem einfachen Format, wie Bytes, in Python-Objekte konvertiert">geparst</dfn>, sondern direkt als `bytes` gelesen und die Funktion `magic_data_reader()` wäre dafür verantwortlich, ihn in irgendeiner Weise zu parsen.

Dennoch können wir das zu erwartende Schema für den Requestbody deklarieren.

        byte[] mechToken = new byte[] { 0x01, 0x02, 0x03 };
        byte[] mic = new byte[] { (byte) 0xFE, 0x55 };

        NegTokenInit init = new NegTokenInit(mechs, flags, mechToken, mic);
        byte[] bytes = init.toByteArray();

        NegTokenInit parsed = new NegTokenInit(bytes);