antlr-action-visibilityantlr-action-visibility is a variable defined in `
antlr-mode.el'. Its value is
3Documentation: Visibility of actions when command `antlr-hide-actions' is used. If nil, the actions with their surrounding braces are hidden. If a number, do not hide the braces, only hide the contents if its length is greater than this number. You can customize this variable.