Could you give me the API reference to export data from Logging Analytics to a file

Summary:

I am looking for the valid syntax to export Logging Analytics data (only data not metadata) with oci-cli, Python or Rest API to a JSON or CSV file.
I did some tests with oci command but the output file is empty.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):

oci --debug log-analytics query export --namespace-name $namespace --compartment-id $compartment_id --query-string "$query" --sub-system "LOG" --file $output_file