foundry/Data/systems/pf2e/templates/items/rules/fast-healing.hbs

<div class="spaced-fields details-container-flex-row">
    <select name="system.rules.{{index}}.type">
        {{#select rule.type}}
            {{#each types as |label key|}}
                <option value="{{key}}">{{localize label}}</option>
            {{/each}}
        {{/select}}
    </select>
    <input type="text" class="value" name="system.rules.{{index}}.value" value="{{rule.value}}" placeholder="0" />

    {{#if (eq rule.type "regeneration")}}
        <label>{{localize "PF2E.RuleEditor.FastHealing.DeactivatedBy"}}</label>
        <input type="text" class="pf2e-tagify deactivated-by" name="system.rules.{{index}}.deactivatedBy" value="{{json rule.deactivatedBy}}" data-dtype="JSON"/>
    {{else}}
        <label>{{localize "PF2E.DetailsHeading"}}</label>
        <input type="text" class="details" name="system.rules.{{index}}.details" value="{{rule.details}}"/>
    {{/if}}
</div>

<div class="spaced-fields">
    <label>{{localize "PF2E.RuleEditor.General.Predicate"}}</label>
    <input type="text" name="system.rules.{{index}}.predicate" value="{{json rule.predicate}}" />
</div>