## _log_scalars
---
### ::: ultralytics.utils.callbacks.tensorboard._log_scalars
## on_pretrain_routine_start
---
### ::: ultralytics.utils.callbacks.tensorboard.on_pretrain_routine_start
## on_batch_end
---
### ::: ultralytics.utils.callbacks.tensorboard.on_batch_end
## on_fit_epoch_end
---
### ::: ultralytics.utils.callbacks.tensorboard.on_fit_epoch_end