parameters: (self)
return_statement: return self.id1_ + ':' + self.id2_
docstring: Return unique identifier for this object, comprising the string pair
          in the format str1:str2.
docstring_summary: Return unique identifier for this object, comprising the string pair
          in the format str1:str2.
docstring_tokens: Return unique identifier for this object comprising the string pair in the format str1 : str2 .
function: def name(self):
          """Return unique identifier for this object, comprising the string pair
          in the format str1:str2."""
          return self.id1_ + ':' + self.id2_
function_tokens: def name ( self ) : return self . id1_ + ':' + self . id2_