def visit_Expr(self, node: ast.Expr) -> Optional[ast.Expr]:
if isinstance(<EOL>node.value,<EOL>(<EOL>ast.Constant,  <EOL>ast.Name,<EOL>ast.NameConstant,<EOL>ast.Num,<EOL>ast.Str,<EOL>),<EOL>):<EOL><INDENT>return None<EOL><DEDENT>return node<EOL>
Eliminate no-op constant expressions which are in the tree
        as standalone statements.