class_docstr: Returns the 'epoch' from the model state. Default for key: 'epoch'.
  
  State Requirements:
      - :attr:`torchbearer.state.EPOCH`: This key should map to the number of the current epoch
class_docstr_tok: ["Returns","the","'epoch","'","from","the","model","state",".","Default","for","key",":","'epoch","'",".","State","Requirements",":","-",":","attr",":","`","torchbearer.state.EPOCH","`",":","This","key","should","map","to","the","number","of","the","current","epoch"]
code: def __init__(self):
      super(Epoch, self).__init__("epoch")
  
imports: import torchbearer
  from torchbearer import Metric
  from .decorators import default_for_key, running_mean, mean, std, to_dict
  import torch
label_desc: Use image node_id 1 to create a new Epoch object from inherited base classes: Metric with example: obj = Epoch()