+#include "flatfile.h"
+#include "streams.h"
+#include "uint256.h"

The full include-list for node/blockstorage.h:
#include <attributes.h>                // for LIFETIMEBOUND
#include <chain.h>                     // for CBlockFileInfo, CBlockIndex
#include <dbwrapper.h>                 // for CDBWrapper
#include <kernel/blockmanager_opts.h>  // for BlockManagerOpts
#include <kernel/chainparams.h>        // for CChainParams
#include <kernel/cs_main.h>            // for cs_main
#include <kernel/messagestartchars.h>  // for MessageStartChars
#include <stddef.h>                    // for size_t
#include <sync.h>                      // for EXCLUSIVE_LOCKS_REQUIRED, GUARDED_BY, RecursiveMutex
#include <util/fs.h>                   // for path
#include <util/hasher.h>               // for BlockHasher
#include <algorithm>                   // for max
#include <array>                       // for array, tuple_size_v
#include <atomic>                      // for atomic, atomic_bool
#include <cstdint>                     // for uint64_t, uint8_t
#include <functional>                  // for function
#include <iosfwd>                      // for ostream
#include <limits>                      // for numeric_limits
#include <map>                         // for multimap
#include <memory>                      // for unique_ptr
#include <optional>                    // for optional, nullopt
#include <set>                         // for set
#include <string>                      // for string, hash
#include <unordered_map>               // for unordered_map
#include <utility>                     // for move, pair
#include <vector>                      // for vector
#include "flatfile.h"                  // for FlatFilePos (ptr only), FlatFileSeq
#include "uint256.h"                   // for uint256, operator==
class BlockValidationState;  // lines 32-32
class CAutoFile;  // lines 33-33
class CBlock;  // lines 34-34
class CBlockHeader;
class CBlockUndo;  // lines 35-35
class Chainstate;  // lines 37-37
class ChainstateManager;  // lines 38-38
namespace Consensus { struct Params; }  // lines 42-42
namespace util { class SignalInterrupt; }  // lines 45-45