ABI generation fails with Self arg types

[miraclx]

#[near_bindgen]
#[derive(Serialize, Deserialize)]
struct MyType {
    data: u8,
}

#[near_bindgen]
impl MyType {
    fn set_state(&mut self, new_state: Self) {
        std::mem::replace(self, new_state);
    }
}

$ cargo build --features near-sdk/__abi-generate
   Compiling adder v0.1.0 (/Users/miraclx/git/near/near-sdk-rs/examples/adder)
error[E0308]: mismatched types
  --> src/lib.rs:12:1
   |
12 | #[near_bindgen]
   | ^^^^^^^^^^^^^^^ expected struct `Input`, found struct `MyTypeExt`
   |
   = note: expected reference `&Input<'_>`
              found reference `&MyTypeExt`
   = note: this error originates in the attribute macro `near_bindgen` (in Nightly builds, run with -Z macro-backtrace for more info)

Some errors have detailed explanations: E0308, E0411.
For more information about an error, try `rustc --explain E0308`.
error: could not compile `adder` due to 4 previous errors