**balance* - unsigned int; The total balance of the current simplewallet in session.
**unlocked_balance* - unsigned int; Unlocked funds are those funds that are sufficiently deep enough in the Monero blockchain to be considered safe to spend.
**height* - string; The current simplewallet's blockchain height. If the wallet has been offline for a long time, it may need to catch up with the daemon.
Get a list of incoming payments using a given payment id, or a list of payments ids, from a given height.
Get a list of incoming payments using a given payment id, or a list of payments ids, from a given height. This method is the preferred method over `get_payments` because it has the same functionality but is more extendable. Either is fine for looking up transactions by a single payment ID.