You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: api_bindings.rs
    path of file: ./repos/neon/libs/walproposer/src
    
    the code of the file until where you have to start completion: //! A C-Rust shim: defines implementation of C walproposer API, assuming wp
//! callback_data stores Box to some Rust implementation.

#![allow(dead_code)]

    
extern "C" fn conn_status(sk: *mut Safekeeper) -> WalProposerConnStatusType {
    unsafe {
        let callback_data = (*(*(*sk).wp).config).callback_data;
        let api = callback_data as *mut Box<dyn ApiImpl>;
        (*api).conn_status(&mut (*sk))
    }
}