///
  /// In principle this could be incorporated into the union
  /// for pointer types and non-64bit values, but then int64 and float64 values
  /// would need to be indirected.  This means that we are aiming for a total
  /// data type size of <=16 bytes, comprised of one pointer (8 bytes) and
  /// one type (<=8bytes).
  Type type_;

	return url.QueryEscape(evalArgs(args))
}

// evalArgs formats the list of arguments into a string. It is therefore equivalent to
//
//	fmt.Sprint(args...)
//
// except that each argument is indirected (if a pointer), as required,
// using the same rules as the default string evaluation during template
// execution.
func evalArgs(args []any) string {
	ok := false
	var s string

// indirections associated with the elements of the data structure.
// If any pointer so reached is nil, no bytes are written. If the
// data item is zero, no bytes are written. Single values - ints,
// strings etc. - are indirected before calling their encoders.
// Otherwise, the output (for a scalar) is the field number, as an
// encoded integer, followed by the field data in its appropriate
// format.

			check.errorf(arg0, InvalidOffsetof, invalidArg+"%s is a method value", arg0)
			return
		}
		if indirect {
			check.errorf(x, InvalidOffsetof, invalidArg+"field %s is embedded via a pointer in %s", sel, base)
			return
		}

		// TODO(gri) Should we pass x.typ instead of base (and have indirect report if derefStructPtr indirected)?
		check.recordSelection(selx, FieldVal, base, obj, index, false)

			check.errorf(arg0, InvalidOffsetof, invalidArg+"%s is a method value", arg0)
			return
		}
		if indirect {
			check.errorf(x, InvalidOffsetof, invalidArg+"field %s is embedded via a pointer in %s", sel, base)
			return
		}

		// TODO(gri) Should we pass x.typ instead of base (and have indirect report if derefStructPtr indirected)?
		check.recordSelection(selx, FieldVal, base, obj, index, false)

	// unaddressable expression.
	//
	// Example:
	//  var x = &1
	UnaddressableOperand

	// InvalidIndirection occurs when a non-pointer value is indirected via the
	// '*' operator.
	//
	// Example:
	//  var x int
	//  var y = *x
	InvalidIndirection

	/* exprs > [] */

	// NonIndexableOperand occurs when an index operation is applied to a value

	// unaddressable expression.
	//
	// Example:
	//  var x = &1
	UnaddressableOperand

	// InvalidIndirection occurs when a non-pointer value is indirected via the
	// '*' operator.
	//
	// Example:
	//  var x int
	//  var y = *x
	InvalidIndirection

	// NonIndexableOperand occurs when an index operation is applied to a value

	if err != nil {
		s.writeError(err)
	}
}

// printableValue returns the, possibly indirected, interface value inside v that
// is best for a call to formatted printer.
func printableValue(v reflect.Value) (any, bool) {
	if v.Kind() == reflect.Pointer {
		v, _ = indirect(v) // fmt.Fprint handles nil.
	}
	if !v.IsValid() {
		return "<no value>", true
	}

    assertThat(emptyGraph.isDirected()).isTrue();
    assertThat(emptyGraph.allowsSelfLoops()).isTrue();
    assertThat(emptyGraph.nodeOrder()).isEqualTo(ElementOrder.<String>natural());
  }

  @Test
  public void copyOf_incidentEdgeOrder() {
    ImmutableGraph<Object> graph = ImmutableGraph.copyOf(GraphBuilder.undirected().build());

    assertThat(emptyGraph.isDirected()).isTrue();
    assertThat(emptyGraph.allowsSelfLoops()).isTrue();
    assertThat(emptyGraph.nodeOrder()).isEqualTo(ElementOrder.<String>natural());
  }

  @Test
  public void copyOf_incidentEdgeOrder() {
    ImmutableGraph<Object> graph = ImmutableGraph.copyOf(GraphBuilder.undirected().build());