struct Plugin {
    version: &'static str,
    amx_count: u32,
}

impl Plugin {
    fn load(&self) -> bool {
        log!("Plugin is loaded. Version: {}", self.version);
        return true;
    }

    fn amx_load(&mut self, amx: &AMX) -> Cell {
        let natives = natives![
            { "MyFunction", my_function }
        ];

        match amx.register(natives) {
            Ok(_) => log!("Natives are successful loaded"),
            Err(err) => log!("Whoops, there is an error {:?}", err),
        }

        self.amx_count += 1;

        AMX_ERR_NONE
    }

    fn amx_unload(&mut self, _: &AMX) -> Cell {
        self.amx_count -= 1;

        AMX_ERR_NONE
    }

    fn my_function(&self, _amx: &AMX, player_id: i32) -> AmxResult<Cell> {
        Ok(-player_id)
    }
}

impl Default for Plugin {
    fn default() -> Self {
        Plugin {
            version: "0.1",
            amx_count: 0,
        }
    }
}

new_plugin!(Plugin);

// Also you can make a plugin with ProcessTick support.
new_plugin!(Plugin with process_tick)

// native: FunctionName(int_arg, &float_arg);
define_native!(function_name, int_arg: i32, float_ref_arg: ref f32);

// native: WithoutArguments();
define_native(function_name);

// Broadcast to all subscribers that a user have changed his name.
fn notify(&self, amx: AMX, player_id: u32, old_name: String, new_name: String) -> AmxResult<Cell> {
    exec_public!(amx, "OnPlayerNameChanged"; player_id, old_name => string, new_name => string) 
}

  --> /root/.cargo/registry/src/github.com-1ecc6299db9ec823/samp-sdk-0.8.1/src/lib.rs:12:1
   |
12 | #![feature(macro_reexport)]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to previous error

error: Could not compile `samp-sdk`.

To learn more, run the command again with --verbose.