post-ephemeral-params

record post-ephemeral-params {
  token: string,
  as-user: option​<bool>,
  attachments: option​<string>,
  blocks: option​<string>,
  channel: string,
  icon-emoji: option​<string>,
  icon-url: option​<string>,
  link-names: option​<bool>,
  parse: option​<string>,
  text: option​<string>,
  thread-ts: option​<string>,
  user: string,
  username: option​<string>,
}