keystore/4
keystore(list, key, index, new_tuple)Receives a list of tuples and replaces the element identified by key at position with new_tuple.
If the element does not exist, it is added to the end of the list.
keystore(list, key, index, new_tuple)Receives a list of tuples and replaces the element identified by key at position with new_tuple.
If the element does not exist, it is added to the end of the list.