code: function() {
      var help = handlebars.Utils.escapeExpression(this._service.getUsage())
      handlebars.registerPartial('ServiceHelp', `
  <pre>
  ${help}
  </pre>
  `)
      handlebars.registerPartial('schemaElements',
  `{{#each children}}
  + **{{name}}**{{#if_nea '*(either)*,*(or)*' name}}{{#falsey required}} *(optional)*{{/falsey}}{{~/if_nea}}:
  {{#truthy description}}{{description}}{{/truthy}}
  {{#ifnotempty children}}
      {{> schemaElements}}
  {{/ifnotempty}}
  {{/each}}`
      )
    }
docs: ********************************************************************
  Register handlebars partials.