code: def __contains__(self, item):
      return dict.__contains__(self, item) or (item in self.fallback)
  
imports: import copy
  import sacred.optional
  from sacred.utils import join_paths, SacredError
label_desc: Use image node_id 7 for calling the DogmaticDict obj's underlying member method code with example usage: obj.__contains__(item) and returns: unknown