How to use the @tryghost/pretty-cli.ui.log function in @tryghost/pretty-cli

if (!_.isEmpty(theme.results.warning)) {
        ui.log(chalk.yellow.bold('\nWarnings'));
        ui.log(chalk.yellow.bold('--------'));

        _.each(theme.results.warning, rule => outputResult(rule, options));
    }

    if (!_.isEmpty(theme.results.recommendation)) {
        ui.log(chalk.yellow.bold('\nRecommendations'));
        ui.log(chalk.yellow.bold('---------------'));

        _.each(theme.results.recommendation, rule => outputResult(rule, options));
    }

    ui.log(`\nGet more help at ${chalk.cyan.underline('https://ghost.org/docs/api/handlebars-themes/')}`);
    ui.log(`You can also check theme compatibility at ${chalk.cyan.underline('https://gscan.ghost.org/')}`);

    // The CLI feature is mainly used to run gscan programatically in tests within themes.
    // Exiting with error code for warnings, causes the test to fail, even tho a theme
    // upload via Ghost Admin would be possible without showing errors/warning.
    // See also here: https://github.com/TryGhost/Blog/pull/41#issuecomment-484525754
    // TODO: make failing for warnings configurable by e. g. passing an option, so we can
    // disable it for the usage with tests
    if (errorCount > 0) {
        process.exit(1);
    } else {
        process.exit(0);
    }
}

function outputResult(result) {
    ui.log(levels[result.level](`- ${_.capitalize(result.level)}:`), result.rule);

    if (options.verbose) {
        ui.log(`${chalk.bold('\nDetails:')} ${result.details}`);
    }

    if (result.failures && result.failures.length) {
        if (options.verbose) {
            ui.log(''); // extra line-break
            ui.log(`${chalk.bold('Files:')}`);
            result.failures.forEach((failure) => {
                ui.log(`${failure.ref} - ${failure.message}`);
            });
        } else {
            ui.log(`${chalk.bold('Files:')} ${_.map(result.failures, 'ref')}`);
        }
    }

let errorCount = theme.results.error.length;

    ui.log('\n' + getSummary(theme, options));

    if (!_.isEmpty(theme.results.error)) {
        ui.log(chalk.red.bold('\nErrors'));
        ui.log(chalk.red.bold('------'));
        ui.log(chalk.red('Important to fix, functionality may be degraded.\n'));

        _.each(theme.results.error, rule => outputResult(rule, options));
    }

    if (!_.isEmpty(theme.results.warning)) {
        ui.log(chalk.yellow.bold('\nWarnings'));
        ui.log(chalk.yellow.bold('--------'));

        _.each(theme.results.warning, rule => outputResult(rule, options));
    }

    if (!_.isEmpty(theme.results.recommendation)) {
        ui.log(chalk.yellow.bold('\nRecommendations'));
        ui.log(chalk.yellow.bold('---------------'));

        _.each(theme.results.recommendation, rule => outputResult(rule, options));
    }

    ui.log(`\nGet more help at ${chalk.cyan.underline('https://ghost.org/docs/api/handlebars-themes/')}`);
    ui.log(`You can also check theme compatibility at ${chalk.cyan.underline('https://gscan.ghost.org/')}`);

    // The CLI feature is mainly used to run gscan programatically in tests within themes.
    // Exiting with error code for warnings, causes the test to fail, even tho a theme

function outputResult(result) {
    ui.log(levels[result.level](`- ${_.capitalize(result.level)}:`), result.rule);

    if (options.verbose) {
        ui.log(`${chalk.bold('\nDetails:')} ${result.details}`);
    }

    if (result.failures && result.failures.length) {
        if (options.verbose) {
            ui.log(''); // extra line-break
            ui.log(`${chalk.bold('Files:')}`);
            result.failures.forEach((failure) => {
                ui.log(`${failure.ref} - ${failure.message}`);
            });
        } else {
            ui.log(`${chalk.bold('Files:')} ${_.map(result.failures, 'ref')}`);
        }
    }

    ui.log(''); // extra line-break
}

function outputResult(result) {
    ui.log(levels[result.level](`- ${_.capitalize(result.level)}:`), result.rule);

    if (options.verbose) {
        ui.log(`${chalk.bold('\nDetails:')} ${result.details}`);
    }

    if (result.failures && result.failures.length) {
        if (options.verbose) {
            ui.log(''); // extra line-break
            ui.log(`${chalk.bold('Files:')}`);
            result.failures.forEach((failure) => {
                ui.log(`${failure.ref} - ${failure.message}`);
            });
        } else {
            ui.log(`${chalk.bold('Files:')} ${_.map(result.failures, 'ref')}`);
        }
    }

    ui.log(''); // extra line-break
}

}, function (err) {
                    ui.log(err.message);
                    ui.log('Did you mean to add the -z flag to read a zip file?');
                });
        }

}, function (err) {
                    ui.log(err.message);
                    ui.log('Did you mean to add the -z flag to read a zip file?');
                });
        }

function outputResults(theme, options) {
    try {
        theme = gscan.format(theme, options);
    } catch (err) {
        ui.log.error('Error formating result, some results may be missing.');
        ui.log.error(err);
    }

    let errorCount = theme.results.error.length;

    ui.log('\n' + getSummary(theme, options));

    if (!_.isEmpty(theme.results.error)) {
        ui.log(chalk.red.bold('\nErrors'));
        ui.log(chalk.red.bold('------'));
        ui.log(chalk.red('Important to fix, functionality may be degraded.\n'));

        _.each(theme.results.error, rule => outputResult(rule, options));
    }

    if (!_.isEmpty(theme.results.warning)) {
        ui.log(chalk.yellow.bold('\nWarnings'));
        ui.log(chalk.yellow.bold('--------'));

        _.each(theme.results.warning, rule => outputResult(rule, options));
    }