Function libevent_sys::evrpc_request_set_cb

pub unsafe extern "C" fn evrpc_request_set_cb(
    ctx: *mut evrpc_request_wrapper,
    cb: Option<unsafe extern "C" fn(arg1: *mut evrpc_status, request: *mut c_void, reply: *mut c_void, arg: *mut c_void)>,
    cb_arg: *mut c_void
)