pkg go/ast, type Package //deprecated #52463
pkg go/ast, type Scope //deprecated #52463
pkg go/types, func NewAlias(*TypeName, Type) *Alias #63223
pkg go/types, func Unalias(Type) Type #63223
pkg go/types, method (*Alias) Obj() *TypeName #63223
pkg go/types, method (*Alias) String() string #63223
pkg go/types, method (*Alias) Underlying() Type #63223
pkg go/types, method (*Info) PkgNameOf(*ast.ImportSpec) *PkgName #62037

			s = "<-chan "
		case types.SendRecv:
			s = "chan "
		default:
			panic("unreachable")
		}
		buf.WriteString(s)
		w.writeType(buf, typ.Elem())

	case *types.Alias:
		w.writeType(buf, types.Unalias(typ))

	case *types.Named:
		obj := typ.Obj()
		pkg := obj.Pkg()
		if pkg != nil && pkg != w.current.Package {
			buf.WriteString(pkg.Name())
			buf.WriteByte('.')
		}

# Alias


@app.post("/required-list-alias", operation_id="required_list_alias")
async def read_required_list_alias(p: Annotated[list[str], Form(alias="p_alias")]):
    return {"p": p}


class FormModelRequiredListAlias(BaseModel):
    p: list[str] = Field(alias="p_alias")


@app.post("/model-required-list-alias", operation_id="model_required_list_alias")

# Alias and validation alias


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


class CookieModelRequiredAliasAndValidationAlias(BaseModel):
    p: str = Field(alias="p_alias", validation_alias="p_val_alias")

# Alias


@app.post("/required-bytes-alias", operation_id="required_bytes_alias")
async def read_required_bytes_alias(p: Annotated[bytes, File(alias="p_alias")]):
    return {"file_size": len(p)}


@app.post("/required-uploadfile-alias", operation_id="required_uploadfile_alias")
async def read_required_uploadfile_alias(
    p: Annotated[UploadFile, File(alias="p_alias")],
):

# Alias


@app.post("/required-list-alias", operation_id="required_list_alias")
async def read_required_list_alias(
    p: Annotated[list[str], Body(embed=True, alias="p_alias")],
):
    return {"p": p}


class BodyModelRequiredListAlias(BaseModel):
    p: list[str] = Field(alias="p_alias")


@app.post("/model-required-list-alias", operation_id="model_required_list_alias")

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


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

    }


@pytest.mark.parametrize(
    "path",
    [
        "/list-bytes-alias-and-validation-alias",
        "/list-uploadfile-alias-and-validation-alias",
    ],
)
def test_list_alias_and_validation_alias_by_alias(path: str):
    client = TestClient(app)
    response = client.post(path, files=[("p_alias", b"hello"), ("p_alias", b"world")])
    assert response.status_code == 422, response.text

# Alias


@app.get("/required-list-alias")
async def read_required_list_alias(p: Annotated[list[str], Header(alias="p_alias")]):
    return {"p": p}


class HeaderModelRequiredListAlias(BaseModel):
    p: list[str] = Field(alias="p_alias")


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

# Alias


@app.post("/required-alias", operation_id="required_alias")
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")