toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (booleanConstraint != null) 'booleanConstraint': booleanConstraint!,
if (constraintDefault != null) 'constraintDefault': constraintDefault!,
if (description != null) 'description': description!,
if (displayName != null) 'displayName': displayName!,
if (listConstraint != null) 'listConstraint': listConstraint!,
if (name != null) 'name': name!,
};