Function concordium_contracts_common::deserial_set_no_length_no_order_check

pub fn deserial_set_no_length_no_order_check<R: Read, K: Deserial + Ord>(
    source: &mut R, 
    len: usize
) -> ParseResult<BTreeSet<K>>

Read a BTreeSet as an list of key-value pairs given some length. Slightly faster version of deserial_set_no_length as it is skipping the order checking. The only check that is made to the set is that there are no duplicates.