<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def set_literal_handle(self, tokens):
 """Converts set literals to the right form for the target Python."""

        internal_assert(len(tokens) == 1 and len(tokens[0]) == 1, "invalid set literal tokens", tokens)
        if self.target_info < (2, 7):
            return "_coconut.set(" + set_to_tuple(tokens[0]) + ")"
        else:
            return "{" + tokens[0][0] + "}"