Method weights_names

src/callbacks/ltfb.cpp:113–116

@name Data access and query */ @{

  /** @name Data access and query */
  ///@{
  auto weights_names() const noexcept -> std::set<std::string> const&
  {
    return weights_names_;
  }
  bool has_weights_names() const noexcept { return !weights_names_.empty(); }
  ///@}
private: