Function exonum_librocksdb_sys::rocksdb_writebatch_delete_cf

pub unsafe extern "C" fn rocksdb_writebatch_delete_cf(
    batch: *mut rocksdb_writebatch_t, 
    column_family: *mut rocksdb_column_family_handle_t, 
    key: *const c_char, 
    klen: size_t
)