p: Optional[str] = Field(None, validation_alias="p_val_alias")


@app.post(
    "/model-optional-validation-alias", operation_id="model_optional_validation_alias"
)
def read_model_optional_validation_alias(
    p: Annotated[FormModelOptionalValidationAlias, Form()],
):
    return {"p": p.p}


@pytest.mark.parametrize(
    "path",

class HeaderModelOptionalValidationAlias(BaseModel):
    p: Optional[str] = Field(None, validation_alias="p_val_alias")


@app.get("/model-optional-validation-alias")
def read_model_optional_validation_alias(
    p: Annotated[HeaderModelOptionalValidationAlias, Header()],
):
    return {"p": p.p}


@pytest.mark.parametrize(
    "path",

class CookieModelOptionalValidationAlias(BaseModel):
    p: Optional[str] = Field(None, validation_alias="p_val_alias")


@app.get("/model-optional-validation-alias")
def read_model_optional_validation_alias(
    p: Annotated[CookieModelOptionalValidationAlias, Cookie()],
):
    return {"p": p.p}


@pytest.mark.parametrize(
    "path",

    return {"p": p}


class QueryModelOptionalValidationAlias(BaseModel):
    p: Optional[str] = Field(None, validation_alias="p_val_alias")


@app.get("/model-optional-validation-alias")
def read_model_optional_validation_alias(
    p: Annotated[QueryModelOptionalValidationAlias, Query()],
):
    return {"p": p.p}


@pytest.mark.parametrize(
    "path",

    p: Optional[str] = Field(None, validation_alias="p_val_alias")


@app.post(
    "/model-optional-validation-alias", operation_id="model_optional_validation_alias"
)
def read_model_optional_validation_alias(
    p: BodyModelOptionalValidationAlias,
):
    return {"p": p.p}


@pytest.mark.parametrize(
    "path",
    ["/optional-validation-alias", "/model-optional-validation-alias"],
)