Train_meta details

[zzzzyq-18]

Excuse me, I want to ask about, to training shanghai data set, if need to use the training model of the shanghai data set on the MPU as pre-trained model to load the encoder.Or can do not need any pre-trained model, and if so, the weight of the encoder is random

[liucun12]

Excuses me，do you know where the meta_update function is defined？