Function emscripten_sys::emscripten_idb_async_store

pub unsafe extern fn emscripten_idb_async_store(db_name: *const c_char,
                                                file_id: *const c_char,
                                                ptr: *mut c_void,
                                                num: c_int,
                                                arg: *mut c_void,
                                                onstore: em_arg_callback_func,
                                                onerror: em_arg_callback_func)