How to use in custom plugins? #12

{% if craft.app.plugins.isPluginEnabled('code-mirror') %}

    CODE MIRROR FIELD HERE

{% else %}
    {{ forms.textareaField({
        label: 'Template'|t('app'),
        name: 'template',
        value: template,
        rows: 8,
        errors: model.getErrors('template'),
    }) }}
{% endif %}