def METHOD_NAME(self, node):
    """
    Args: node which is a Call Node.
    Check:
    - if return_error() statement exists in the current node.
    Increases the counter of return_error.
    """
    try:
        if node.func.name == "return_error":
            self.return_error_count = self.return_error_count + 1
    except AttributeError:
        pass