Function accept_transfer 

pub fn accept_transfer<T, U>(
    e: &Env,
    active_key: &T,
    pending_key: &U,
) -> Address
where
    T: IntoVal<Env, Val>,
    U: IntoVal<Env, Val>,

Completes the role transfer if authorization is provided by the pending role holder. Pending role holder is retrieved from the storage.

Arguments

• e - Access to the Soroban environment.
• active_key - Storage key for the current role holder.
• pending_key - Storage key for the pending role holder.

Errors

• RoleTransferError::NoPendingTransfer - If there is no pending transfer to accept.
• RoleTransferError::TransferExpired - If the current ledger is past the live_until_ledger stored in PendingTransfer. The deadline is checked explicitly here, so it is enforced even if the storage entry is still alive due to the network minimum TTL or a permissionless extend_ttl call.