codeql/csharp/ql/test/library-tests/csharp8/DefaultInterfaceMethods.ql

import csharp

class DefaultInterfaceMethod extends Callable {
  DefaultInterfaceMethod() {
    this.hasBody() and
    this.getDeclaringType() instanceof Interface
  }
}

query predicate defaultInterfaceMethods(DefaultInterfaceMethod m) { any() }