code: public ItemRequest<Workspace> removeUser(String workspace) {
      
          String path = String.format("/workspaces/%s/removeUser", workspace);
          return new ItemRequest<Workspace>(this, Workspace.class, path, "POST");
      }
docs: The user making this call must be an admin in the workspace.
  Returns an empty data record.
  
  @param  workspace The workspace or organization to invite the user to.
  @return Request object