code: def String(self, off):
          
          N.enforce_number(off, N.UOffsetTFlags)
          off += encode.Get(N.UOffsetTFlags.packer_type, self.Bytes, off)
          start = off + N.UOffsetTFlags.bytewidth
          length = encode.Get(N.UOffsetTFlags.packer_type, self.Bytes, off)
          return bytes(self.Bytes[start:start+length])
docs: String gets a string from data stored inside the flatbuffer.