Function rustfmt_nightly::expr::rewrite_assign_rhs_expr

pub(crate) fn rewrite_assign_rhs_expr<R: Rewrite>(
    context: &RewriteContext<'_>,
    lhs: &str,
    ex: &R,
    shape: Shape,
    rhs_kind: &RhsAssignKind<'_>,
    rhs_tactics: RhsTactics
) -> Option<String>