parameters: (self, key)
return_statement: return 0
docstring: The count of elements not in the Counter is zero.
docstring_summary: The count of elements not in the Counter is zero.
docstring_tokens: The count of elements not in the Counter is zero .
function: def __missing__(self, key):
          'The count of elements not in the Counter is zero.'
          # Needed so that self[missing_item] does not raise KeyError
          return 0
function_tokens: def __missing__ ( self , key ) : # Needed so that self[missing_item] does not raise KeyError return 0