Function oasis_runtime_sdk::modules::consensus_accounts::state::add_undelegation

pub fn add_undelegation(
    from: Address,
    to: Address,
    epoch: EpochTime,
    shares: u128,
    receipt: u64,
) -> Result<u64, Error>

Record new undelegation and add to undelegation queue.

In case an undelegation for the given (from, to, epoch) tuple already exists, the undelegation entry is merged by adding shares. When a non-zero receipt identifier is passed, the identifier is set in case the existing entry has no such identifier yet.

It returns the receipt identifier of the undelegation done receipt.