warning static method
Implementation
static void warning(String message, [String? a, String? b, String? c]) {
message.write(inGray);
if (a != null) {
" $a".write(inYellow);
}
if (b != null) {
" $b".write(inMagenta);
}
if (c != null) {
" $c".write(inWhite);
}
print("");
}