private void checkOneParameter(PyCallable callable, PsiElement beingChecked, boolean isGetter) {
      final PyParameterList parameterList = callable.getParameterList();
      if (myOneParamFunction != null && !PyUtil.isSignatureCompatibleTo(callable, myOneParamFunction, myTypeEvalContext)) {
        if (isGetter) {
          registerProblem(beingChecked, PyPsiBundle.message("INSP.getter.signature.advice"),
                          new PyUpdatePropertySignatureQuickFix(false));
        }
        else {
          registerProblem(beingChecked, PyPsiBundle.message("INSP.deleter.signature.advice"), new PyUpdatePropertySignatureQuickFix(false));
        }
      }
      checkForSelf(parameterList);
    }
private void checkOneParameter(PyCallable callable, PsiElement beingChecked, boolean isGetter)