Looker Action to hit Http server in LookML

[veerablog1]

How can we specify authorization header for Looker actions?

Following is my LookML

dimension: report_name {
    action: {
      label: "Execute Adhoc Run"
      url: "https:url_here"
      icon_url: "https://looker.com/favicon.ico"
      form_param: {
        name: "title"
        type: string
        label: "Title"
        required: yes
        description: "title"
      }
    }
    type: string
    sql: ${TABLE}.REPORT_NAME ;;
  }