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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def with_stmt_handle(self, tokens):
 """Process with statements."""

        internal_assert(len(tokens) == 2, "invalid with statement tokens", tokens)
        withs, body = tokens
        if len(withs) == 1 or self.target_info >= (2, 7):
            return "with " + ", ".join(withs) + body
        else:
            return (
                "".join("with " + expr + ":\n" + openindent for expr in withs[:-1])
                + "with " + withs[-1] + body
                + closeindent * (len(withs) - 1)
            )