// the receiver stops reading them.
func _Ranger[Elem any]() (*_Sender[Elem], *_Receiver[Elem]) {
	c := make(chan Elem)
	d := make(chan struct{})
	s := &_Sender[Elem]{
		values: c,
		done:   d,
	}
	r := &_Receiver[Elem]{
		values: c,
		done:   d,
	}
	runtime.SetFinalizer(r, (*_Receiver[Elem]).finalize)
	return s, r
}

// A _Sender is used to send values to a Receiver.

func (mapError) Error() string { return "mapError" }

var _ error = mapError{}
var _ error = new(mapError)

func TestImplements(t *testing.T) {
	for _, tt := range implementsTests {
		xv := TypeOf(tt.x).Elem()
		xt := TypeOf(tt.t).Elem()
		if b := xv.Implements(xt); b != tt.b {
			t.Errorf("(%s).Implements(%s) = %v, want %v", TypeString(xv), TypeString(xt), b, tt.b)
		}
	}
}

var assignableTests = []struct {
	x any
	t any

// allocated temporary variable of type [len]elem. This variable is
// initialized, and elem must not contain pointers.
func stackBufAddr(len int64, elem *types.Type) *ir.AddrExpr {
	if elem.HasPointers() {
		base.FatalfAt(base.Pos, "%v has pointers", elem)
	}
	tmp := typecheck.TempAt(base.Pos, ir.CurFunc, types.NewArray(elem, len))
	return typecheck.Expr(typecheck.NodAddr(tmp)).(*ir.AddrExpr)

  size_t offset = 0;
  for (auto const& e : v) {
    Tensor elem = e.tensor;
    if (first.tensor.dtype() == DT_STRING) {
      for (int i = 0; i < elem.NumElements(); ++i) {
        t.flat<tstring>()(offset + i) = elem.flat<tstring>()(i);
      }
      offset += elem.NumElements();
    } else {
      std::copy_n(elem.tensor_data().data(), elem.TotalBytes(),
                  const_cast<char*>(t.tensor_data().data()) + offset);

				return nil
			}

			want := true
			elem := ""

			// Don't use GOROOT/src but do walk down into it.
			if pkgDir == root {
				if importPathRoot == "" {
					return nil
				}
			} else {
				// Avoid .foo, _foo, and testdata subdirectory trees.
				_, elem = filepath.Split(pkgDir)
				if strings.HasPrefix(elem, ".") || strings.HasPrefix(elem, "_") || elem == "testdata" {
					want = false
				}
			}

	return strings.Split(path, string(ListSeparator))
}

func abs(path string) (string, error) {
	return unixAbs(path)
}

func join(elem []string) string {
	// If there's a bug here, fix the logic in ./path_plan9.go too.
	for i, e := range elem {
		if e != "" {
			return Clean(strings.Join(elem[i:], string(Separator)))
		}
	}
	return ""
}

func sameWord(a, b string) bool {
	return a == b

		ElemList []Expr
		expr
	}

	// [Len]Elem
	ArrayType struct {
		// TODO(gri) consider using Name{"..."} instead of nil (permits attaching of comments)
		Len  Expr // nil means Len is ...
		Elem Expr
		expr
	}

	// []Elem
	SliceType struct {
		Elem Expr
		expr
	}

	// ...Elem
	DotsType struct {
		Elem Expr
		expr
	}

        for (Map<String, Object> elem : jobLogList) {
            deleteMethod("/api/admin/joblog/log/" + elem.get("id"));
        }

        final List<Map<String, Object>> crawlingInfoList = readCrawlingInfo(webConfigId);
        for (Map<String, Object> elem : crawlingInfoList) {
            deleteMethod("/api/admin/crawlinginfo/log/" + elem.get("id"));
        }

	case reflect.Struct:
		v := reflect.New(p.Type()).Elem()
		for i := 0; i < p.NumField(); i++ {
			v.Field(i).Set(subst(m, p.Field(i), pos))
		}
		return v

	case reflect.Pointer:
		v := reflect.New(p.Type()).Elem()
		if elem := p.Elem(); elem.IsValid() {
			v.Set(subst(m, elem, pos).Addr())
		}
		return v

	case reflect.Interface:
		v := reflect.New(p.Type()).Elem()
		if elem := p.Elem(); elem.IsValid() {

	case *aliases.Alias:
		return w.Has(aliases.Unalias(t))

	case *types.Array:
		return w.Has(t.Elem())

	case *types.Slice:
		return w.Has(t.Elem())

	case *types.Struct:
		for i, n := 0, t.NumFields(); i < n; i++ {
			if w.Has(t.Field(i).Type()) {
				return true
			}
		}

	case *types.Pointer:
		return w.Has(t.Elem())

	case *types.Tuple:
		n := t.Len()
		for i := 0; i < n; i++ {