docs: def add_member(self, member):
          """
          Add a single member to the scope.
  
          You may only edit the list of members if the pykechain credentials allow this.
  
          :param member: single username to be added to the scope list of members
          :type member: basestring
          :raises APIError: when unable to update the scope member
          """
          select_action = 'add_member'
  
          self._update_scope_project_team(select_action=select_action, user=member, user_type='member')