expand method
Implementation
List<dynamic> expand(String content, bool shouldExpand) {
final LineSplitter lineSplitter = LineSplitter();
var lines = lineSplitter
.convert(content)
.where((item) {
return item.isNotEmpty && !item.startsWith('#');
})
.map((item) => item.replaceAll('\n', ''))
.toList();
return shouldExpand ? lines.map((item) => item.split('=')).toList() : lines;
}