type: string

description: >
  An HTML string of less than 100,000 characters to be used as the
  `published_version` of this template. See [here](#section/HTML-Examples) for
  guidance on designing HTML templates. Please see endpoint specific documentation
  for any other product-specific HTML details:

  - [Postcards](#operation/postcard_create) - `front` and `back`

  - [Self Mailers](#operation/self_mailer_create) - `inside` and `outside`

  - [Letters](#operation/letter_create) - `file`

  - [Checks](#operation/check_create) - `check_bottom` and `attachment`

  - [Cards](#operation/card_create) - `front` and `back`


  If there is a syntax error with your variable names within your HTML,
  then an error will be thrown, e.g. using a `{{#users}}` opening tag
  without the corresponding closing tag `{{/users}}`.

maxLength: 100000