Expr::Binary {
    attrs: [
        Attribute {
            style: AttrStyle::Outer,
            meta: Meta::Path [
                PathSegment {
                    ident: "attr",
                    arguments: PathArguments::None,
                },
            ],
        },
    ],
    left: Expr::Lit {
        attrs: [],
        lit: Lit::Int { 1 },
    },
    op: BinOp::Add,
    right: Expr::Lit {
        attrs: [],
        lit: Lit::Int { 1 },
    },
}