Implementation
set apply(NikuCheckboxListTile? v) {
if (v == null) return;
onChanged = v.onChanged ?? onChanged;
activeColor = v.activeColor ?? activeColor;
checkColor = v.checkColor ?? checkColor;
tileColor = v.tileColor ?? tileColor;
title = v.title ?? title;
subtitle = v.subtitle ?? subtitle;
isThreeLine = v.isThreeLine ?? isThreeLine;
dense = v.dense ?? dense;
secondary = v.secondary ?? secondary;
selected = v.selected ?? selected;
controlAffinity = v.controlAffinity ?? controlAffinity;
autofocus = v.autofocus ?? autofocus;
contentPadding = v.contentPadding ?? contentPadding;
tristate = v.tristate ?? tristate;
shape = v.shape ?? shape;
selectedTileColor = v.selectedTileColor ?? selectedTileColor;
visualDensity = v.visualDensity ?? visualDensity;
focusNode = v.focusNode ?? focusNode;
enableFeedback = v.enableFeedback ?? enableFeedback;
splashColor = v.splashColor ?? splashColor;
highlightColor = v.highlightColor ?? highlightColor;
hoverColor = v.hoverColor ?? hoverColor;
focusColor = v.focusColor ?? focusColor;
$parent..$merge(v.$parent);
}