code: def save_array_types(self, fname):
      '''Save array type registry to a file
      
      Args:
        fname (str): Name of file to save array database to
      '''
      type_defs = {'arrays': sorted(list(self.array_types))}
      with open(fname, 'wt') as fh:
        pprint(type_defs, stream=fhf save_array_types(self, fname):
      '''Save array type registry to a file
      
      Args:
        fname (str): Name of file to save array database to
      '''
      type_defs = {'arrays': sorted(list(self.array_types))}
      with open(fname, 'wt') as fh:
        pprint(type_defs, stream=fh)
docs: Save array type registry to a file
      
      Args:
        fname (str): Name of file to save array database to