Traceback (most recent call last):
  File "pylint/pylint/utils/ast_walker.py", line 87, in walk
    callback(astroid)
    ~~~~~~~~^^^^^^^^^
  File "pylint/pylint/extensions/code_style.py", line 166, in visit_if
    self._check_consider_using_assignment_expr(node)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "pylint/pylint/extensions/code_style.py", line 286, in _check_consider_using_assignment_expr
    f"({node_name.name} := {prev_sibling.value.as_string()})",
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'as_string'