pub unsafe extern "C" fn rocksdb_options_set_block_based_table_factory(
    options: *const DBOptionsOpaque, 
    block_options: *const DBBlockBasedTableOptionsOpaque
)pub unsafe extern "C" fn rocksdb_options_set_block_based_table_factory(
    options: *const DBOptionsOpaque, 
    block_options: *const DBBlockBasedTableOptionsOpaque
)