TIP: "Press " { $operation com-stack-effect } " to print the stack effect of the code in the input field without executing it (" { $link "inference" } ").";
TIP: "Press " { $operation walk } " to single-step through the code in the input field (" { $link "ui-walker" } ").";
TIP: "Press " { $operation time } " to time execution of the code in the input field (" { $link "timing" } ").";