code: private void addHashCode(TypeSpec.Builder classBuilder) {
          MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("hashCode")
                  .addModifiers(Modifier.PUBLIC)
                  .returns(int.class)
                  .addAnnotation(Override.class)
                  .addStatement("return _binderID");
          classBuilder.addMethod(methodBuilder.build());
      }
docs: Add proxy method to set hashcode to uniqueu id of binder