Method add_encoding

cpp/src/generated/feather_generated.h:315–317

    fbb_.AddElement<int8_t>(PrimitiveArray::VT_TYPE, static_cast<int8_t>(type), 0);
  }
  void add_encoding(arrow::ipc::feather::fbs::Encoding encoding) {
    fbb_.AddElement<int8_t>(PrimitiveArray::VT_ENCODING, static_cast<int8_t>(encoding), 0);
  }
  void add_offset(int64_t offset) {
    fbb_.AddElement<int64_t>(PrimitiveArray::VT_OFFSET, offset, 0);
  }