Function librocksdbsys::crocksdb_writebatch_delete_range

pub unsafe extern "C" fn crocksdb_writebatch_delete_range(
    batch: *mut DBWriteBatch, 
    begin_key: *const u8, 
    begin_keylen: size_t, 
    end_key: *const u8, 
    end_keylen: size_t
)