Using a default implementation on an interface

If I have an interface

interface IAttack<T> {
  T GetAttack();
}

interface IAttack<T> {
  T GetAttack();
}

And I now want to have a specialized interface

interface IUpgradableAttack<T> : IAttack<T>{
  int level {get; set;}
  T GetAttack(int level);
}

interface IUpgradableAttack<T> : IAttack<T>{
  int level {get; set;}
  T GetAttack(int level);
}

Can I somehow use the default implementation

GetAttack(){GetAttack(level)}

GetAttack(){GetAttack(level)}

to implement

IAttack

IAttack

for thingss that are implementing

IUpgradableAttack

IUpgradableAttack