class_docstr: Grid+Random Recipe for MTNet
code: def search_space(self):
      return {
          "model": "MTNet",
          "lr": self.lr,
          "batch_size": self.batch_size,
          "epochs": self.epochs,
          "cnn_dropout": self.cnn_dropout,
          "rnn_dropout": self.rnn_dropout,
          "time_step": self.time_step,
          "long_num": self.long_num,
          "ar_size": self.ar_size,
          "past_seq_len": self.past_seq_len,
          "cnn_hid_size": self.cnn_hid_size,
          "cnn_height": self.cnn_height,
      }
  
imports: from zoo.chronos.autots.deprecated.config.base import Recipe
  from zoo.orca.automl import hp
  from zoo.chronos.utils import deprecated
label_desc: Use image node_id 2 for calling the MTNetGridRandomRecipe obj's underlying member method code with example usage: obj.search_space() and returns: dict