Is there an initialization method/callback after __init__ shared by fit/validate/test in LightningModule?

[semaphore-egg]

The logger is not available in __init__ of LightningModule.
But some shared initialization related to logger is required by my code's fit/validate/test mode.

Is there an initialization method shared by fit/validate/test in LightningModule?

Currently, I make a method and manually call it in on_train_start, on_validation_start, and on_test_start, which seems not elegant.