Function in3_sys::in3_set_storage_handler

pub unsafe extern "C" fn in3_set_storage_handler(
    c: *mut in3_t, 
    get_item: in3_storage_get_item, 
    set_item: in3_storage_set_item, 
    clear: in3_storage_clear, 
    cptr: *mut c_void
)