The user can be referenced by their globally unique user ID or their email address.
        Returns the full user record for the invited user.

        Parameters
        ----------
        workspace : {Id} The workspace or organization to invite the user to.
        [data] : {Object} Data for the request
          - user : {String} An identifier for the user. Can be one of an email address,
          the globally unique identifier for the user, or the keyword `me`
          to indicate the current user making the request.

def add_user(self, workspace, params={}, **options): 
        """The user can be referenced by their globally unique user ID or their email address.
        Returns the full user record for the invited user.

        Parameters
        ----------
        workspace : {Id} The workspace or organization to invite the user to.
        [data] : {Object} Data for the request
          - user : {String} An identifier for the user. Can be one of an email address,
          the globally unique identifier for the user, or the keyword `me`
          to indicate the current user making the request.
        """
        path = "/workspaces/%s/addUser" % (workspace)
        return self.client.post(path, params, **options)