Tcl_HashEntry* entry = Tcl_CreateHashEntry(hash.table, key, &created);
Tcl_HashEntry* entry = Tcl_CreateHashEntry(&hash->table, key, &created);
void dp_hash_set_value(dp_hash_t h, const void* key, const void* data) {    struct hashtable* hash = (struct hashtable*)h;    int created;    Tcl_HashEntry* entry = Tcl_CreateHashEntry(hash.table, key, &created);    Tcl_SetHashValue(entry, (ClientData)data);}