Get the stub code for this function.

        :sig: () -> List[str]
        :return: Lines of stub code for this function.

def get_code(self):
        """Get the stub code for this function.

        :sig: () -> List[str]
        :return: Lines of stub code for this function.
        """
        stub = []

        for deco in self.decorators:
            if (deco in DECORATORS) or deco.endswith(".setter"):
                stub.append("@" + deco)

        parameters = []
        for name, type_, has_default in self.parameters:
            decl = "%(n)s%(t)s%(d)s" % {
                "n": name,
                "t": ": " + type_ if type_ else "",
                "d": " = ..." if has_default else "",
            }
            parameters.append(decl)

        slots = {
            "a": "async " if self._async else "",
            "n": self.name,
            "p": ", ".join(parameters),
            "r": self.rtype,
        }

        prototype = "%(a)sdef %(n)s(%(p)s) -> %(r)s: ..." % slots
        if len(prototype) <= LINE_LENGTH_LIMIT:
            stub.append(prototype)
        elif len(INDENT + slots["p"]) <= LINE_LENGTH_LIMIT:
            stub.append("%(a)sdef %(n)s(" % slots)
            stub.append(INDENT + slots["p"])
            stub.append(") -> %(r)s: ..." % slots)
        else:
            stub.append("%(a)sdef %(n)s(" % slots)
            for param in parameters:
                stub.append(INDENT + param + ",")
            stub.append(") -> %(r)s: ..." % slots)

        return stub