async def read_required_alias(p: Annotated[str, Form(alias="p_alias")]):
    return {"p": p}


class FormModelRequiredAlias(BaseModel):
    p: str = Field(alias="p_alias")


@app.post("/model-required-alias", operation_id="model_required_alias")
async def read_model_required_alias(p: Annotated[FormModelRequiredAlias, Form()]):
    return {"p": p.p}


@pytest.mark.parametrize(
    "path",
    [