render method
Renders this tree element into the given buffer
Implementation
void render(StringBuffer buffer, [String padding = '']) {
buffer
..write(padding)
..write(value)
..write('\n');
if (children != null) {
buffer
..write(padding)
..write('[\n');
final childPadding = '$padding ';
for (final child in children ?? []) {
child.render(buffer, childPadding);
}
buffer
..write(padding)
..write(']\n');
}
}