@Nullable
  public static PyAugAssignmentStatement getStatementByTarget(final PsiElement element){
    final PyAugAssignmentStatement statement = PsiTreeUtil.getParentOfType(element, PyAugAssignmentStatement.class);
    if (statement == null){
      return null;
    }
    return statement.getTarget() == element ? statement : null;
  }
@Nullable
  public static PyAugAssignmentStatement getStatementByTarget(final PsiElement element)