Does log_every_n_steps work in validation_step?
I find that golbal_step is the training_step, if i want to log something every k validation_steps, how to implement？
log_every_n_steps works in trains_loop but does not work in validation loop.
Should add global_traing_step, global_val_step and global_test_step?
self.log only support on_step and on epoch, can this api support k_steps or k_epoch (training, validation and test)?