def METHOD_NAME(rule_runner: RuleRunner) -> None:
    rule_runner.write_files(
        {
            "a/f.toml": NEEDS_CONFIG_FILE,
            ".taplo.toml": "[formatting]\ncompact_entries = true\n",
            "b/f.toml": NEEDS_CONFIG_FILE,
        }
    )
    fmt_result = run_taplo(rule_runner)
    assert not fmt_result.stdout
    assert "found files total=2" in fmt_result.stderr
    assert fmt_result.output == rule_runner.make_snapshot(
        {
            "a/f.toml": FIXED_NEEDS_CONFIG_FILE,
            "b/f.toml": FIXED_NEEDS_CONFIG_FILE,
        }
    )
    assert fmt_result.did_change