Original:
{
  "cubit": 823,
  "dale": 13,
  "apple": 199,
  "ember": 191,
  "bottle": 107
}

First:
{
  "cubit": 823
}

Last:
{
  "bottle": 107
}

Concatenate keys and values:
{
  "cubit,dale,apple,ember,bottle": "823,13,199,191,107"
}

Sum of values:
{
  "sum": 1333
}

Product of values:
{
  "product": 43512437137
}

String-join of values:
{
  "joined": "823,13,199,191,107"
}
