docs: def create_handler_func(self, method):
          """
          create_handler_func
          """
          def _handler(callback, schema=None):
              """
              _handler
              """
              # reentrant default is False [POST, DELETE, PUT]
              reentrant = False
              if method == "get":
                  reentrant = True
  
              self.handlers.append({
                  "method": method,
                  "callback": callback,
                  "schema": schema,
                  "reentrant": reentrant
              })
              return self
  
          return _handler