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: pack.rb
    path of file: ./repos/ferrocarril/mruby-sys/vendor/mruby-bc7c5d3/mrbgems/mruby-pack/test
    
    the code of the file until where you have to start completion: PACK_IS_LITTLE_ENDIAN = "\x01\00".unpack('S')[0] == 0x01

def assert_p
    
def assert_pack tmpl, packed, unpacked
  t = tmpl.inspect
  assert do
    assert_equal packed, unpacked.pack(tmpl), "#{unpacked.inspect}.pack(#{t})"
    assert_equal unpacked, packed.unpack(tmpl), "#{packed.inspect}.unpack(#{t})"
  end
end