toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (columns != null) 'columns': columns!,
if (comment != null) 'comment': comment!,
if (constraints != null) 'constraints': constraints!,
if (customFeatures != null) 'customFeatures': customFeatures!,
if (indices != null) 'indices': indices!,
if (triggers != null) 'triggers': triggers!,
};