| IsDict(
                                {
                                    "title": "Callback Url",
                                    "maxLength": 2083,
                                    "minLength": 1,
                                    "type": "string",
                                    "format": "uri",
                                }
                            ),

* 🌐 Add German translation for `docs/de/docs/reference/testclient.md`. PR [#10843](https://github.com/tiangolo/fastapi/pull/10843) by [@nilslindemann](https://github.com/nilslindemann).

                                            "format": "uri",
                                            "minLength": 1,
                                            "maxLength": 2083,
                                        },
                                        {"type": "null"},
                                    ],
                                    "title": "Callback Url",

                                                "format": "uri",
                                                "minLength": 1,
                                                "maxLength": 2083,
                                            },
                                            {"type": "null"},
                                        ],
                                    }