library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;

static method nullAwareListSpread(core::List<core::String>? list) → dynamic
  ;
static method nullAwareSetSpread(core::Set<core::String>? set) → dynamic
  ;
static method nullAwareMapSpread(core::Map<core::int, core::String>? map) → dynamic
  ;
static method main() → dynamic
  ;