Push existing log files to loki using python logger/ loguru

Question

I have log files that I need to send to loki. Below is sample format.

1001 hostname application [1234:543] debug Apr 15 09:41:36.64453    Alias:App Command:any   Arguments: Log file rotated
1002 hostname application [1234:543] debug Apr 15 09:43:36.64453    successfully aggregated and redeemed
<xml1>
.....
</xml1>
<xml2>
.....
</xml2>
1003 hostname application [1234:543] debug Apr 15 09:45:36.64453    Alias:App Command:any   Arguments: Log file rotated

Content of after time stamp is mostly multi line could have xml as well and next log line starts with similar format as 1002

Question is what approach I should have to parse such file.

I want to have values to keys: timestamp=epoch(Apr 15 09:41:36.64453), type=Debug/info... Message= everything after time stamp

I came up with approach to use regex to combine "1001 hostname" to find next log line and concat everything to message key.

And log this keys line by line so handler to send it loki.

Like to have a suugesstion on better way to do it.

Thanks