export const mhtDocumentTemplate = (htmlSource: string, contentParts: string) => {
  return `MIME-Version: 1.0
Content-Type: multipart/related;
    type="text/html";
    boundary="----=mhtDocumentPart"


------=mhtDocumentPart
Content-Type: text/html;
    charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Location: file:///C:/fake/document.html

${htmlSource}

${contentParts}

------=mhtDocumentPart--
`
}