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#ifndef ENTT_GRAPH_FWD_HPP
#define ENTT_GRAPH_FWD_HPP
#include <cstddef>
#include <memory>
#include "../core/fwd.hpp"
namespace entt {
/*! @brief Undirected graph category tag. */
struct directed_tag {};
/*! @brief Directed graph category tag. */
struct undirected_tag: directed_tag {};
template<typename, typename = std::allocator<std::size_t>>
class adjacency_matrix;
template<typename = std::allocator<id_type>>
class basic_flow;
/*! @brief Alias declaration for the most common use case. */
using flow = basic_flow<>;
} // namespace entt
#endif
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