Function librocksdb_sys::rocksdb_approximate_sizes

pub unsafe extern "C" fn rocksdb_approximate_sizes(
    db: *mut rocksdb_t,
    num_ranges: c_int,
    range_start_key: *const *const c_char,
    range_start_key_len: *const usize,
    range_limit_key: *const *const c_char,
    range_limit_key_len: *const usize,
    sizes: *mut u64,
    errptr: *mut *mut c_char,
)