I want to swap assignment expression

[chkhetiani]

What I want to achieve is following, let's say I have:
state.x = state.y;
I want to swap lhs and rhs getting
state.y = state.x;

is that possible with textojbects?
I tried following but didn't work:

                swap = {
                    enable = true,
                    swap_next = {
                        ["<leader>ga"] = "@assignment.outer",
                        ["<leader>gs"] = "@assignment.inner",
                    },
                },