
  [;1m-spec erase() -> [{Key, Val}] when Key :: term(), Val :: term().[0m

  Returns the process dictionary and deletes it, for example:

    > put(key1, {1, 2, 3}),
    put(key2, [a, b, c]),
    erase().
    [{key1,{1,2,3}},{key2,[a,b,c]}]
