code: def set_password(self, password):
          
          for child in xml_element_iter(self.xmlnode.children):
              if get_node_ns_uri(child) == MUC_NS and child.name == "password":
                  child.unlinkNode()
                  child.freeNode()
                  break
  
          if password is not None:
              self.xmlnode.newTextChild(self.xmlnode.ns(), "password", to_utf8(password))
docs: Set password for the MUC request.
  
          :Parameters:
              - `password`: password
          :Types:
              - `password`: `unicode`