retrieveByID(
    properties => [ 'foo','bar','baz' ],
    ids => [ 4,5,62 ]
);

#later....
retrieveByID(
    properties => [ 'a','b','c' ],
    ids => [ 7,8,89 ]
);

#later...
retrieveByID(
    properties => [ 'foo','c','d' ],
    ids => [ 4,8,102 ]
);