Function napi_sys::napi_create_external_buffer

pub unsafe extern "C" fn napi_create_external_buffer(
    env: napi_env, 
    length: size_t, 
    data: *mut c_void, 
    finalize_cb: napi_finalize, 
    finalize_hint: *mut c_void, 
    result: *mut napi_value
) -> napi_status