toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (left != null) 'left': left!,
if (positionOption != null) 'positionOption': positionOption!,
if (top != null) 'top': top!,
if (windowHeight != null) 'windowHeight': windowHeight!,
if (windowWidth != null) 'windowWidth': windowWidth!,
};