async def post(self,body: ReferenceCreate, request_configuration: Optional[RequestConfiguration[QueryParameters]] = None) -> None:
        """
        Specify the user or group in @odata.id in the request body. Users in the rejected senders list can't post to conversations of the group (identified in the POST request URL). Make sure you don't specify the same user or group in the rejected senders and accepted senders lists, otherwise you'll get an error.
        param body: The request body
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: None
        Find more info here: https://learn.microsoft.com/graph/api/group-post-rejectedsenders?view=graph-rest-1.0
        """
        if body is None:
            raise TypeError("body cannot be null.")
        request_info = self.to_post_request_information(
            body, request_configuration
        )
        from .....models.o_data_errors.o_data_error import ODataError

        error_mapping: dict[str, type[ParsableFactory]] = {
            "XXX": ODataError,
        }
        if not self.request_adapter:
            raise Exception("Http core is null") 
        return await self.request_adapter.send_no_response_content_async(request_info, error_mapping)

        Specify the user or group in @odata.id in the request body. Users in the rejected senders list can't post to conversations of the group (identified in the POST request URL). Make sure you don't specify the same user or group in the rejected senders and accepted senders lists, otherwise you'll get an error.
        param body: The request body
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: None
        Find more info here: https://learn.microsoft.com/graph/api/group-post-rejectedsenders?view=graph-rest-1.0
        
msgraph/generated/groups/item/rejected_senders/ref/ref_request_builder.py