fn rewrite_assignment(
context: &RewriteContext<'_>,
lhs: &Expr,
rhs: &Expr,
op: Option<&BinOp>,
shape: Shape,
) -> Result<String, RewriteError>
fn rewrite_assignment(
context: &RewriteContext<'_>,
lhs: &Expr,
rhs: &Expr,
op: Option<&BinOp>,
shape: Shape,
) -> Result<String, RewriteError>