how to write an if statement in jinja code example

Example 1: jinja if

{% if 'priority' in data %}
    <p>Priority: {{ data['priority'] }}</p>
{% endif %}

Example 2: jinja if else

{% if "error" in RepoOutput[RepoName.index(repo)] %}
    <td id="error"> {{ RepoOutput[RepoName.index(repo)] }} </td>
{% elif "Already" in RepoOutput[RepoName.index(repo) %}
    <td id="good"> {{ RepoOutput[RepoName.index(repo)] }} </td>
{% else %}
    <td id="error"> {{ RepoOutput[RepoName.index(repo)] }} </td>
{% endif %}
</tr>