code: public ItemRequest<Team> addUser(String team) {
      
          String path = String.format("/teams/%s/addUser", team);
          return new ItemRequest<Team>(this, Team.class, path, "POST");
      }
docs: The user making this call must be a member of the team in order to add others.
  The user to add must exist in the same organization as the team in order to be added.
  The user to add can be referenced by their globally unique user ID or their email address.
  Returns the full user record for the added user.
  
  @param  team Globally unique identifier for the team.
  @return Request object