)
def read_optional_list_validation_alias(
    p: Annotated[list[str] | None, Form(validation_alias="p_val_alias")] = None,
):
    return {"p": p}


class FormModelOptionalListValidationAlias(BaseModel):
    p: list[str] | None = Field(None, validation_alias="p_val_alias")


@app.post(
    "/model-optional-list-validation-alias",

            serialization_alias = alias
        if validation_alias in (_Unset, None):
            validation_alias = alias
        kwargs.update(
            {
                "annotation": annotation,
                "alias_priority": alias_priority,
                "validation_alias": validation_alias,
                "serialization_alias": serialization_alias,
                "strict": strict,

@app.get("/optional-validation-alias")
def read_optional_validation_alias(
    p: Annotated[str | None, Cookie(validation_alias="p_val_alias")] = None,
):
    return {"p": p}


class CookieModelOptionalValidationAlias(BaseModel):
    p: str | None = Field(None, validation_alias="p_val_alias")


@app.get("/model-optional-validation-alias")
def read_model_optional_validation_alias(

@app.get("/optional-list-validation-alias")
def read_optional_list_validation_alias(
    p: Annotated[list[str] | None, Header(validation_alias="p_val_alias")] = None,
):
    return {"p": p}


class HeaderModelOptionalListValidationAlias(BaseModel):
    p: list[str] | None = Field(None, validation_alias="p_val_alias")


@app.get("/model-optional-list-validation-alias")
def read_model_optional_list_validation_alias(

@app.get("/optional-validation-alias")
def read_optional_validation_alias(
    p: Annotated[str | None, Query(validation_alias="p_val_alias")] = None,
):
    return {"p": p}


class QueryModelOptionalValidationAlias(BaseModel):
    p: str | None = Field(None, validation_alias="p_val_alias")


@app.get("/model-optional-validation-alias")
def read_model_optional_validation_alias(

@app.get("/required-list-validation-alias")
def read_required_list_validation_alias(
    p: Annotated[list[str], Query(validation_alias="p_val_alias")],
):
    return {"p": p}


class QueryModelRequiredListValidationAlias(BaseModel):
    p: list[str] = Field(validation_alias="p_val_alias")


@app.get("/model-required-list-validation-alias")
async def read_model_required_list_validation_alias(

# Validation alias


@app.get("/required-validation-alias")
def read_required_validation_alias(
    p: Annotated[str, Cookie(validation_alias="p_val_alias")],
):
    return {"p": p}


class CookieModelRequiredValidationAlias(BaseModel):
    p: str = Field(validation_alias="p_val_alias")


@app.get("/model-required-validation-alias")
def read_model_required_validation_alias(

)
def read_required_bytes_validation_alias(
    p: Annotated[bytes, File(validation_alias="p_val_alias")],
):
    return {"file_size": len(p)}


@app.post(
    "/required-uploadfile-validation-alias",
    operation_id="required_uploadfile_validation_alias",
)
def read_required_uploadfile_validation_alias(
    p: Annotated[UploadFile, File(validation_alias="p_val_alias")],
):
    return {"file_size": p.size}

)
def read_required_list_validation_alias(
    p: Annotated[list[str], Form(validation_alias="p_val_alias")],
):
    return {"p": p}


class FormModelRequiredListValidationAlias(BaseModel):
    p: list[str] = Field(validation_alias="p_val_alias")


@app.post(
    "/model-required-list-validation-alias",
    operation_id="model_required_list_validation_alias",

from pydantic import BaseModel, ConfigDict, Field


@pytest.fixture(name="client")
def get_client():
    app = FastAPI()

    class ModelWithRef(BaseModel):
        ref: str = Field(validation_alias="$ref", serialization_alias="$ref")
        model_config = ConfigDict(validate_by_alias=True, serialize_by_alias=True)

    @app.get("/", response_model=ModelWithRef)
    async def read_root() -> Any: