bool filterAcceptNetwork(const QModelIndex &) const;
bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const;
bool lessThan(const QModelIndex &, const QModelIndex &);
bool filterAcceptNetwork(const QModelIndex &) const;
bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const;
bool lessThan(const QModelIndex &, const QModelIndex &);