How to use the dockerflow.logging.JsonLogFormatter function in dockerflow

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, you can obtain one at http://mozilla.org/MPL/2.0/.
import json
import logging
import logging.config
import os
import sys
import textwrap

import jsonschema
import pytest
from dockerflow.logging import JsonLogFormatter

logger_name = "tests"
formatter = JsonLogFormatter(logger_name=logger_name)


def assert_records(records):
    assert len(records) == 1
    details = json.loads(formatter.format(records[0]))
    jsonschema.validate(details, JSON_LOGGING_SCHEMA)
    return details


def test_initialization_from_ini(caplog, tmpdir):
    ini_content = textwrap.dedent(
        """
    [loggers]
    keys = root

    [handlers]