Function rocksdb_get_pinned

pub unsafe extern "C" fn rocksdb_get_pinned(
    db: *mut rocksdb_t,
    options: *const rocksdb_readoptions_t,
    key: *const c_char,
    keylen: usize,
    errptr: *mut *mut c_char,
) -> *mut rocksdb_pinnableslice_t