code: protected Spec readSpecFromFile(Path path) throws IOException {
      Spec spec;
  
      try (FSDataInputStream fis = fs.open(path)) {
        spec = this.specSerDe.deserialize(ByteStreams.toByteArray(fis));
      }
  
      return spec;
    }
docs: *
  Read and deserialized Spec from a file.
  @param path File containing serialized Spec.
  @return Spec
  @throws IOException