discourse-custom-wizard/assets/javascripts/discourse/templates/components/wizard-mapper-pair.hbs

<div class="key mapper-block">
  {{wizard-mapper-selector
    selectorType='key'
    inputType=inputType
    value=pair.key
    activeType=pair.key_type
    options=options
    onUpdate=onUpdate}}
</div>

{{wizard-mapper-connector
  connector=pair.connector
  connectors=connectors
  connectorType="pair"
  inputType=inputType
  options=options
  onUpdate=onUpdate}}

<div class="value mapper-block">
  {{wizard-mapper-selector
    selectorType='value'
    inputType=inputType
    value=pair.value
    activeType=pair.value_type
    options=options
    onUpdate=onUpdate}}
</div>

{{#if showJoin}}
  <span class="join-pair">&</span>
{{/if}}

{{#if showRemove}}
  <a {{action removePair pair}} class="remove-pair">{{d-icon 'times'}}</a>
{{/if}}