def response(self, in_thread: Optional[bool] = None) -> "<STR_LIT>":
data = {"<STR_LIT>": self["<STR_LIT>"]}<EOL>if in_thread:<EOL><INDENT>if "<STR_LIT:message>" in self:<EOL><INDENT>data["<STR_LIT>"] = (<EOL>self["<STR_LIT:message>"].get("<STR_LIT>") or self["<STR_LIT:message>"]["<STR_LIT>"]<EOL>)<EOL><DEDENT>else:<EOL><INDENT>data["<STR_LIT>"] = self.get("<STR_LIT>") or self["<STR_LIT>"]<EOL><DEDENT><DEDENT>elif in_thread is None:<EOL><INDENT>if "<STR_LIT:message>" in self and "<STR_LIT>" in self["<STR_LIT:message>"]:<EOL><INDENT>data["<STR_LIT>"] = self["<STR_LIT:message>"]["<STR_LIT>"]<EOL><DEDENT>elif "<STR_LIT>" in self:<EOL><INDENT>data["<STR_LIT>"] = self["<STR_LIT>"]<EOL><DEDENT><DEDENT>return Message(data)<EOL>
Create a response message.

Depending on the incoming message the response can be in a thread. By default the response follow where the
incoming message was posted.

Args:
    in_thread (boolean): Overwrite the `threading` behaviour

Returns:
     a new :class:`slack.event.Message`