class Operators1 {
  operator >>>() => true;
}
class Operators2 {
  operator >>>(a, b) => true;
}
class Operators3 {
  operator >>>([a]) => true;
}
class Operators4 {
  operator >>>({a}) => true;
}
class Operators5 {
  operator >>>(a, [b]) => true;
}
class Operators6 {
  operator >>>(a, {b}) => true;
}
class Operators7 {
  operator >>><T>(a) => true;
}
main() {}