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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 send_chat_action( self, chat_id: Union[int, str], action: Union[ChatAction, str], progress: int = 0 ):
 """Use this method when you need to tell the other party that something is happening on your side. Args: chat_id (``int`` | ``str``):
 Unique identifier (int) or username (str) of the target chat. For your personal cloud (Saved Messages) you can simply use "me" or "self". For a contact that exists in your Telegram address book you can use his phone number (str). action (:obj:`ChatAction <pyrogram.ChatAction>` | ``str``):
 Type of action to broadcast. Choose one from the :class:`ChatAction <pyrogram.ChatAction>` enumeration, depending on what the user is about to receive. progress (``int``, *optional*):
 Progress of the upload process. Currently useless because official clients don't seem to be handling this. Returns: On success, True is returned. Raises: :class:`RPCError <pyrogram.RPCError>` in case of a Telegram RPC error. ``ValueError`` if the provided string is not a valid ChatAction. """


        # Resolve Enum type
        if isinstance(action, str):
            action = ChatAction.from_string(action).value
        elif isinstance(action, ChatAction):
            action = action.value

        if "Upload" in action.__name__:
            action = action(progress=progress)
        else:
            action = action()

        return self.send(
            functions.messages.SetTyping(
                peer=self.resolve_peer(chat_id),
                action=action
            )
        )