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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 request(self, method: str, path: str, content: Optional[Union[dict, bytes, str]] = None, timestamp: Optional[int] = None, external_url: Optional[str] = None, headers: Optional[Dict[str, str]] = None, query_params: Optional[Dict[str, Any]] = None, api_path: str = "/_matrix/client/r0") -> Awaitable[dict]: """ Make a raw HTTP request. Args: method: The HTTP method to use. path: The API endpoint to call. Does not include the base path (e.g. /_matrix/client/r0). content: The content to post as a dict (json) or bytes/str (raw). timestamp: The timestamp query param used for timestamp massaging. external_url: The external_url field to send in the content (only applicable if content is dict). headers: The dict of HTTP headers to send. query_params: The dict of query parameters to send. api_path: The base API path. Returns: The response as a dict. """

        content = content or {}
        headers = headers or {}
        query_params = query_params or {}
        query_params["access_token"] = self.token

        if timestamp is not None:
            if isinstance(timestamp, datetime):
                timestamp = int(timestamp.replace(tzinfo=timezone.utc).timestamp() * 1000)
            query_params["ts"] = timestamp
        if isinstance(content, dict) and external_url is not None:
            content["external_url"] = external_url

        method = method.upper()
        if method not in ["GET", "PUT", "DELETE", "POST"]:
            raise MatrixError("Unsupported HTTP method: %s" % method)

        if "Content-Type" not in headers:
            headers["Content-Type"] = "application/json"
        if headers.get("Content-Type", None) == "application/json":
            content = json.dumps(content)

        if self.identity and not self.is_real_user:
            query_params["user_id"] = self.identity

        self._log_request(method, path, content, query_params)

        endpoint = self.base_url + api_path + path
        return self._send(method, endpoint, content, query_params, headers or {})