class_docstr: State dictionary that behaves like a python dict but accepts StateKeys
class_docstr_tok: ["State","dictionary","that","behaves","like","a","python","dict","but","accepts","StateKeys"]
code: def __getitem__(self, key):
      return super(State, self).__getitem__(self.get_key(key))
  
imports: from torchbearer import Metric
  import warnings
label_desc: Use image node_id 4 for calling the State obj's underlying member method code with example usage: obj.__getitem__(key) and returns: super