toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (endIndex != null) 'endIndex': endIndex!,
if (paragraph != null) 'paragraph': paragraph!,
if (sectionBreak != null) 'sectionBreak': sectionBreak!,
if (startIndex != null) 'startIndex': startIndex!,
if (table != null) 'table': table!,
if (tableOfContents != null) 'tableOfContents': tableOfContents!,
};